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10th Standard, Science CHAPTER 13 – Our Environment

yakshadeepa
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10th Standard, Science CHAPTER 13
Our Environment
E X E R C I S E S

  1. Which of the following groups contain only biodegradable items?
    (a) Grass, flowers and leather
    (b) Grass, wood and plastic
    (c) Fruit-peels, cake and lime-juice
    (d) Cake, wood and grass
    Answer: a, c, d
  2. Which of the following constitute a food-chain?
    (a) Grass, wheat and mango
    (b) Grass, goat and human
    (c) Goat, cow and elephant
    (d) Grass, fish and goat
    Answer: (b) Grass, goat and human

  1. Which of the following are environment-friendly practices?
    (a) Carrying cloth-bags to put purchases in while shopping
    (b) Switching off unnecessary lights and fans
    (c) Walking to school instead of getting your mother to drop you on her scooter
    (d) All of the above
    Answer: (d) All of the above

  1. What will happen if we kill all the organisms in one trophic level?
    Answer: If we kill all the organisms of one trophic level, it will lead to an increase in the number of organisms at the lower trophic level and decrease in the number of organisms at the higher trophic level. This will result in disruption in the food web and hence the ecosystem. The transfer of food energy to the next trophic level will stop. The organisms in the higher trophic level will die.The organisms in the lower trophic level will increase in population. This will break the food chain.

  1. Will the impact of removing all the organisms in a trophic level be different for different
    trophic levels? Can the organisms of any trophic level be removed without causing any damage to the ecosystem?
    Answer: If all plants are removed, then herbivores will die because they won’t have food.
    If herbivores are removed, then carnivores will starve and die.
    If all primary consumers are removed, then secondary consumers will starve and die.
    If all organisms in a trophic level are removed, then the population of organisms at the lower trophic level will increase, and the population of organisms at the higher trophic level will decrease. Energy flows unidirectionally in food chains, with energy loss at each trophic level.
    No. The organisms of any trophic level can’t be removed without causing any damage to the ecosystem.

  1. What is biological magnification? Will the levels of this magnification be different at different levels of the ecosystem?
    Answer: Biological magnification is the process by which harmful chemicals increase in concentration as they move up the food chain. The substances become more concentrated as they move up the food chain, and are incorporated into the diet of organisms at higher levels. For example, pesticides or heavy metals can enter lakes, rivers, and oceans, and then move up the food chain into aquatic organisms, fish, birds, animals, and humans.
    Yes, biological magnification levels vary at different levels of an ecosystem. It increases as you move up the food chain, and is highest at the top levels.
  2. What are the problems caused by the non-biodegradable wastes that we generate?
    Answer: Non-biodegradable waste can cause many problems, including pollution, soil damage, and harm to living organisms.
    Burning non-biodegradable waste releases toxic gases.
    Non-biodegradable waste can accumulate in the soil and make it barren.
    Non-biodegradable waste can pollute water.
    Non-biodegradable waste can deplete soil fertility. Non-biodegradable waste can make soil unsuitable for plant growth.
    Chemicals like DDT can accumulate in the food chain. Cattle can die after eating plastics. Non-biodegradable waste can harm living organisms.

  1. If all the waste we generate is biodegradable, will this have no impact on the environment?
    Answer: Biodegradable waste can still impact the environment, even if it’s handled properly. This is because of the amount of waste generated, the time it takes to decompose, and the impact of decomposition on the environment. Too much biodegradable waste can create a breeding ground for flies, mosquitoes, and worms that spread disease.
  2. Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?
    Answer: At the higher levels of the atmosphere, ozone performs an essential function. It shields the surface of the earth from ultraviolet (UV) radiation from the Sun. This radiation is highly damaging to organisms, for example, it is known to cause skin cancer in human beings. Damage to the ozone layer is a major concern because it allows harmful ultraviolet (UV) radiation from the sun to reach Earth’s surface.
    To limit this damage, the primary step taken globally is to significantly reduce the use of chlorofluorocarbons (CFCs) through the Montreal Protocol, an international treaty that restricts the production and consumption of ozone-depleting substances. In 1987, the United Nations Environment Programme (UNEP) succeeded in forging an agreement to freeze CFC production at 1986 levels. It is now mandatory for all the manufacturing companies to make CFC-free refrigerators throughout the world.

Some more Text Book Questions:

  1. What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
    Answer: The steps in a food chain where energy and food are transferred are called trophic levels.
    Example of food chain:
    Grass Insects Frogs Snakes
  2. Grass -The first trophic level, where food is produced
  3. Insects – The second trophic level, where primary consumers eat plants
  4. Frogs – The third trophic level, where secondary consumers eat primary consumers
  5. Snakes – The fourth trophic level, where tertiary consumers eat secondary consumers

  1. What is the role of decomposers in the ecosystem?
    Answer: Decomposers play a vital role in the ecosystem by breaking down dead organisms and returning nutrients to the soil, water, and air. This process helps plants grow and reproduce, and keeps the environment clean.
  2. Why are some substances biodegradable and some non-biodegradable?
    Answer: Substances that are broken down by biological processes are said to be biodegradable. Substances that are not broken down in this manner are said to be non-biodegradable. These substances may be inert and simply persist in the environment for a long time or may harm the various members of the eco-system.
    Substances are considered biodegradable if they can be broken down by microorganisms like bacteria and fungi into simpler organic compounds, while non-biodegradable substances lack the chemical structure that allows them to be decomposed by these organisms, usually because they are synthetic materials with complex bonds that microbes cannot readily break down; essentially, the key difference lies in the ability of microorganisms to digest and utilize the substance’s components.
  3. Give any two ways in which biodegradable substances would affect the environment.
    Answer: When biodegradable substances decompose, they release carbon into the atmosphere. Biodegradable waste can pollute water. Biodegradable waste can pollute the land.

  1. Give any two ways in which non-biodegradable substances would affect the environment.
    Answer: The two ways in which non-biodegradable substances would affect the environment are,
    i) They contaminate soil and water resources as they cannot be decomposed by micro-organisms.
    (ii) These substances, when accidentally eaten by stray animals, can harm them and can even cause their death.
  2. What is ozone and how does it affect any ecosystem?
    Answer: Ozone is a gas made of three atoms of oxygen. It is a hazardous gas that is prevalent high up in the atmosphere. Ozone is a vital gas for all sorts of ecosystems on earth as it protects the environment from the damaging effects of UV radiation causing skin cancer and cataract and impairs our immune system. Depletion of this ozone layer can significantly impact ecosystems by exposing organisms to harmful UV rays, potentially causing damage to plant life, disrupting marine ecosystems, and increasing the risk of skin cancer in humans.

  1. How can you help in reducing the problem of waste disposal? Give any two methods.
    Answer: The two ways we can help in reducing the problem of waste disposal are,
    a. Minimize using single-use disposable items by opting for reusable alternatives like water bottles and shopping bags.
    b. Properly separate waste at home by sorting recyclable materials from general trash to ensure they can be recycled effectively.

10th Standard, Karnataka Social/ Geography CHAPTER 29 – INDIA – NATURAL DISASTERS

yakshadeepa
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0

10th Standard, Karnataka Social/ Geography CHAPTER – 29
INDIA – NATURAL DISASTERS
EXERCISES
I. Answer the following questions in brief:

  1. What are natural disasters?
    Answer: Many incidents occurring in Nature are beyond human control. Preventing these and predicting their occurrence at a certain place is beyond science too. Naturally-occurring destructive incidents resulting in loss of human life and property are called natural disasters.

  1. What are the effects of cyclones?
    Answer: The effects of cyclones are as follows.
    a. Cyclones are very destructive. Sometimes, the life of the people of cyclone-hit areas gets totally changed.
    b. They cause large scale deaths.
    c. Ocean tides inundate the inland water-bodies and make them salty.
    d. Crops get totally destroyed.
    e. Transport links, electricity supply and the daily life of the of people get affected badly.
    f. Cyclone-hit areas suffer from infectious diseases, leading to huge casualties.
  2. What are floods?
    Answer: When there is heavy rainfall and excessive melting of ice, the volume of water increases in the river leading it to overflow. This is called “floods”.

  1. What is Landslide?
    Answer: Land mass sliding down the slopes from mountains or hills are called land slide.
  2. What is Earthquake?
    Answer: Vibration or movement of the upper layers of the earth due to the pressure created inside is called Earthquake.
  3. What are the causes of floods? Describe flood-prone areas in India.
    Answer: The causes of floods are,
    a. The uncertainty of monsoon rainfall sometimes gets heavy rainfall causes floods.
    b. Accumulation of silt in the rivers leads to overflowing of water on either side of the river, causing floods.
    c. Breach of dams or retention walls leads to sudden release of large quantity of water resulting in floods.
    d. Rivers changing their course can also cause floods.
    e. Heavy rainfall during cyclones can also lead to floods.
    f. Earthquakes in the sea are also causes floods.
    Apart from the natural causes mentioned above, man-made causes like deforestation, improperly built dams, weak retention walls, and illegal encroachment of land are also important causes.
    Flood-prone regions are found all over the country.
    a. The Ganges and its tributaries Yamuna, Gandak, Kosi and Ghagra rivers cause floods in Uttar Pradesh and Bihar.
    b. Damodar and Suvarnarekha rivers cause floods in Chattisgarh and West Bengal states.
    c. Brahmaputra and its tributaries Dibang, Dihang, Subansiri and Lohit rivers cause floods in Assam.
    d. Cloudburst often causes abrupt floods in the Himalayas.
    e. Narmada, Tapti, Sabaramathi and Mahi rivers cause floods for some days in a year in the state of Gujarat.
    f. Krishna, Tungabhadra, Ghataprabha, Malaprabha, Dhoni, Bennehalla etc. cause floods during rainy season in Karnataka.

  1. What is Coastal Erosion? Mention its management.
    Answer: The erosion of land by the waves in the coastal areas is called coastal erosion. Prevention or management of Coastal erosion can be done as follows.
    a. Prohibiting sand mining in coastal areas.
    b. Constructing retention walls along the length of coast wherever waves are strong.
    c. Stocking of large rocky boulders along the coast to reduce the impact.
    d. The most effective method of preventing coastal erosion is by growing mangrove forests along the coast.

  1. Write about the effects of earthquake and precautions to be taken.
    Answer: The effects of earthquake are,
    1 . The loss of life and destruction of property, 2. Obstruction to transport, 3. Spread of infectious diseases, 4. Increased tidal activity, 5. Tsunamis, 6. Change in river’s direction.
    The precautions to be taken to earthquake are,
    a. Restricting construction of multi-storied building in earthquake-prone areas.
    b. Using very light material for construction of houses in these areas.
    c. Constructing houses to ensure stability.
    d. Providing basic amenities to the quake-affected areas.
    e. Disconnecting power supply in the event of an earthquake. Remedies during natural disasters
  3. With the help of your teacher, make a list the flood affected places in India.
    Answer: The flood affected places in India are West Bengal, Andhra Pradesh, Orissa, Kerala, Haryana, Assam and Uttar Pradesh. Flood prone areas in India are in the areas beside the major rivers like Ganga, Yamuna, Mahanadi, Teesta, Brahmaputra etc. India is one of the most natural disaster prone countries in the world.

  5. Some more Questions.
    Fill in The blanks
  6. Naturally-occurring destructive incidents resulting in loss of human life and property are called Natural disasters.
  7. When there is heavy rainfall and excessive melting of ice, the volume of water increases in the river.
  8. Land mass sliding down the slopes from mountains or hills are called land slide.
  9. Landslides are common in the mining areas.
  10. The erosion of land by the waves in the coastal areas is called coastal erosion.
  11. Vibration or movement of the upper layers of the earth due to the pressure created inside is called Earthquake.
    Answer the following Questions.
  12. What are the preventive measures for cyclones?
    Answer: The preventive measures can be taken for cyclones are,
    a. Evacuation of people from low-lying areas.
    b. Ready to keeping generators, boats, helicopters and other transport facilities.
    c. Re-routing trains and buses from the cyclone-prone areas.
    d. Keeping people constantly informed about the movement of the cyclone.
    e. Keeping the army battalions ready.
    f. Ready to keeping food, potable water and clothes ready.
    g. Ready to keeping medicines and medical facilities ready.
  13. What are the Effects of floods?
    Answer: The Effects of floods are as follows.
    a. Floods are causes, loss of shelter, property, land and crops of the people.
    b. Telecommunication, electricity supply and transport facilities get affected.
    c. Besides washing away the fertile upper layers of soil, a lot of trees are destroyed.
    d. Stagnant water in the low lands leads to dangerous diseases.
  14. Mention the Flood control measures.
    Answer: The Flood control measures are,
    a. To control floods, bunds should be constructed on either side of rivers.
    b. Constructing dams across rivers, collecting water in reservoirs and directing the water to other places.
    c. Establishing centers to issue flood warnings.
    d. Afforestation in the river basins will prevent soil erosion, and also reduce accumulation of silt in the rivers there by reducing the chances of floods.
  15. What are the causes for Landslides?
    Answer: The causes for Landslides are,
    a. In the mountainous areas and coasts, constantly flowing water and tides remove soil creating slopes leading to landslides.
    b. When railways, roads and canals are constructed in the steep mountainous areas, the slopes become steeper leading to landslides.
    c. Collection of loose soil on clay soil layer can enhance steep slope formation leading to landslide.
    d. Landslides are common in the mining areas. Excavation of earth to reach the ore deposits deep down can cause landslides.
    e. Deforestation and deep tilling of the slopes can cause landslides.
  16. What are the effects of Landslides?
    Answer: The effects of Landslides are,
    a. Flowing small rivers are checked by landslides.
    b. Transportation is affected.
    c. Streams and many plants get submerged.
    d. Landslides can cause loss of life and damage to property.
  17. Mention two effects of Coastal Erosion
    Answer: The two effects of Coastal Erosion are,
    a. Large amount of land mass submerg into the sea due to coastal erosion by waves.
    b. Many houses and also property get loss and damaged.
  18. What are the reasons for earthquake?
    Answer: The reasons for earthquake are,
    a. Pressure increases in the interior of the earth.
    b. Change in the Magma from one part to another.
    c. Urbanisation.
    d. Deforestation, Construction of Dams, Mining activities etc.,
  20. Mention the places of India which earthquakes are happened?
    Answer: The occurrence of earthquakes is fairly widespread. The northern Himalayas, East Assam, Gujarat in the West have witnessed most of the earthquakes. In South India, Koyna, Latur and other places have experienced some earthquakes.
  21. What are the measures can be taken in the case of Natural disasters?
    Answer: Distribution of food, drinking water, distribution of medicine, temporary shelter facilities, necessary basic amenities, essential services to be provided in the case of Natural disasters.

Karnataka 10th Standard Chapter – 33, CONSUMER EDUCATION AND PROTECTION

yakshadeepa
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0

Karnataka 10th Standard Chapter – 33
CONSUMER EDUCATION AND PROTECTION
EXERCISES
I. Fill in the blanks with suitable answers:

  1. The other name of the Consumer is User.
  2. Person giving goods or services for money is called Provider’.
  3. The Consumer Day is observed on March 15 every year.
  4. In the case of compensation less than one Crore the complaint has to be submitted to the District Commission .
    II. Answer the following questions in one word or sentence each:
  5. Who is called a consumer?
    Answer: The Service Organisations have used the term ‘User’ to those who use the goods and services. The Government in its consumer protection Act has used the word ‘Consumer’ in place of user.
  6. What is the main aim of Consumer Movement?
    Answer: The traders or the producers cheat the consumers in many ways. To stop this hindrance some social organisations started some movements. This is the main aim of Consumer Movement.
  7. What is the Right of every Consumer?
    Answer: The right of every consumer is to get quality goods and services for his money.
  8. When did Consumer Protection Act come into force in India?
    Answer: Consumer Protection Act come into force in India in 1986.
  9. Who appoints the President of the District Consumer Forum?
    Answer: The State government appoints the President of the District Consumer Forum.

III. Answer the following questions in two or three sentences each:

  1. What are the problems faced by consumers?
    Answer: The problems faced by consumers are,
    It is the right of every consumer to get quality goods and services. The traders or the producers cheat the consumers in many ways. The direct transaction between the producer and the consumer has almost stopped. The Price Fixation of the goods and services was done mainly by the middlemen. It led to many hindrances. Consumers had to face various difficulties and problems. They incurred many losses.
  2. What are the causes for consumer exploitation?
    Answer: When agricultural occupations developed, it changed the marketing methods. The direct transaction between the producer and the consumer has almost stopped. The Price Fixation of the goods and services was done mainly by the middlemen. It led to many hindrances. Consumers had to face various difficulties and problems. These are the causes for consumer exploitation.
  3. Mention the four important aims of the Consumer Protection Council.
    Answer: The four important aims of the Consumer Protection Council are,
    a. The Act accords importance for safety and quality.
    b. Avoiding production and sale of dangerous goods.
    c. Prevention of Trade Malpractices in the market.
    d. Supervision on Quality, Weights, Measures and Price.
    e. Compensating the Consumers in case of any problem arising as a result of trade.
    f. Creating awareness to the consumers through Consumer Education.
  4. What are the major functions of the Consumer Protection Council?
    Answer: The major functions of the Consumer Protection Council are,
    a. The Right to Protect against the marketing of goods which are hazardous to life and property of the consumers.
    b. The Right to Information- information about the quality, quantity, purity, standard etc, to protect the consumer against unfair trade practices.
    c. Right to Choice: Wherever possible access to variety of goods at competitive prices.
    d. Right to be Heard: The interests of the consumers to be heard with due consideration.
    e. Right to seek Redressal against the unfair trade practices or unscrupulous exploitation.
    f. Right to Consumer Education: The Consumers are to be educated about their rights.
    g. Right to stop exploitation.
    h. Right to healthy environment that is good physical environment to enhance the quality of their life.
  5. Mention three stages of Consumer Courts.
    Answer: The three stages of Consumer Courts are,
    1) District Commission : There shall be a forum in each district. A qualified district judge nominated by the state government presides over the deliberations.
    2) The State Commission : A person who is or has been a High Court Judge is its president.
    3) The State Commission : A person who is or has been a High Court Judge is its president.
  6. What are the methods to follow to file a complaint in consumer court?
    Answer: The methods to be followed to file a case in a consumer court are as follows.
    a. There is no prescribed proforma to file a case.
    b. The complaint may be a typed one or hand written.
    c. The complaint should include the name of the person (complainant), Full address and Telephone Number.
    d. The person or organisation against whom the complaint is made should be, mentioned clearly with address.
    e. The particulars of the goods by which the loss has incurred and the amount of loss should be specified clearly. The bill or receipt should be enclosed.
    f. There is no fees or stamp duty for the complaint.
    g. No advocate or lawyer is required. The consumer himself/herself can argue.

IV. Observe the picture given below and answer the questions that fallow:

  1. What is the Company’s name printed on the packet?
    Answer: The Company’s name printed on the packet was ‘KHOJATI”
  2. What is the maximum price printed?
    Answer: the maximum price printed in the packet was Rs 30/-
  3. What is the date of manufacturing of this item?
    Answer: The date of manufacturing of this item is February 2013.
  4. What is the date within which this item is to be used?
    Answer: The date within which this item is to be used is January 2016.

10th Standard, Karnataka Social/ Geography CHAPTER 29 – INDIA – NATURAL DISASTERS

yakshadeepa
-
0

10th Standard, Karnataka Social/ Geography CHAPTER – 29
INDIA – NATURAL DISASTERS
EXERCISES
I. Answer the following questions in brief:

  1. What are natural disasters?
    Answer: Many incidents occurring in Nature are beyond human control. Preventing these and predicting their occurrence at a certain place is beyond science too. Naturally-occurring destructive incidents resulting in loss of human life and property are called natural disasters.
  2. What are the effects of cyclones?
    Answer: The effects of cyclones are as follows.
    a. Cyclones are very destructive. Sometimes, the life of the people of cyclone-hit areas gets totally changed.
    b. They cause large scale deaths.
    c. Ocean tides inundate the inland water-bodies and make them salty.
    d. Crops get totally destroyed.
    e. Transport links, electricity supply and the daily life of the of people get affected badly.
    f. Cyclone-hit areas suffer from infectious diseases, leading to huge casualties.

  1. What are floods?
    Answer: When there is heavy rainfall and excessive melting of ice, the volume of water increases in the river leading it to overflow. This is called “floods”.
  2. What is Landslide?
    Answer: Land mass sliding down the slopes from mountains or hills are called land slide.
  3. What is Earthquake?
    Answer: Vibration or movement of the upper layers of the earth due to the pressure created inside is called Earthquake.

  1. What are the causes of floods? Describe flood-prone areas in India.
    Answer: The causes of floods are,
    a. The uncertainty of monsoon rainfall sometimes gets heavy rainfall causes floods.
    b. Accumulation of silt in the rivers leads to overflowing of water on either side of the river, causing floods.
    c. Breach of dams or retention walls leads to sudden release of large quantity of water resulting in floods.
    d. Rivers changing their course can also cause floods.
    e. Heavy rainfall during cyclones can also lead to floods.
    f. Earthquakes in the sea are also causes floods.
    Apart from the natural causes mentioned above, man-made causes like deforestation, improperly built dams, weak retention walls, and illegal encroachment of land are also important causes.
    Flood-prone regions are found all over the country.
    a. The Ganges and its tributaries Yamuna, Gandak, Kosi and Ghagra rivers cause floods in Uttar Pradesh and Bihar.
    b. Damodar and Suvarnarekha rivers cause floods in Chattisgarh and West Bengal states.
    c. Brahmaputra and its tributaries Dibang, Dihang, Subansiri and Lohit rivers cause floods in Assam.
    d. Cloudburst often causes abrupt floods in the Himalayas.
    e. Narmada, Tapti, Sabaramathi and Mahi rivers cause floods for some days in a year in the state of Gujarat.
    f. Krishna, Tungabhadra, Ghataprabha, Malaprabha, Dhoni, Bennehalla etc. cause floods during rainy season in Karnataka.

  1. What is Coastal Erosion? Mention its management.
    Answer: The erosion of land by the waves in the coastal areas is called coastal erosion. Prevention or management of Coastal erosion can be done as follows.
    a. Prohibiting sand mining in coastal areas.
    b. Constructing retention walls along the length of coast wherever waves are strong.
    c. Stocking of large rocky boulders along the coast to reduce the impact.
    d. The most effective method of preventing coastal erosion is by growing mangrove forests along the coast.

  1. Write about the effects of earthquake and precautions to be taken.
    Answer: The effects of earthquake are,
    1 . The loss of life and destruction of property, 2. Obstruction to transport, 3. Spread of infectious diseases, 4. Increased tidal activity, 5. Tsunamis, 6. Change in river’s direction.
    The precautions to be taken to earthquake are,
    a. Restricting construction of multi-storied building in earthquake-prone areas.
    b. Using very light material for construction of houses in these areas.
    c. Constructing houses to ensure stability.
    d. Providing basic amenities to the quake-affected areas.
    e. Disconnecting power supply in the event of an earthquake. Remedies during natural disasters.

  2. III. Project:
  3. With the help of your teacher, make a list the flood affected places in India.
    Answer: The flood affected places in India are West Bengal, Andhra Pradesh, Orissa, Kerala, Haryana, Assam and Uttar Pradesh. Flood prone areas in India are in the areas beside the major rivers like Ganga, Yamuna, Mahanadi, Teesta, Brahmaputra etc. India is one of the most natural disaster prone countries in the world.
  4. Naturally-occurring destructive incidents resulting in loss of human life and property are called Natural disasters.
  5. When there is heavy rainfall and excessive melting of ice, the volume of water increases in the river.
  6. Land mass sliding down the slopes from mountains or hills are called land slide.
  7. Landslides are common in the mining areas.
  8. The erosion of land by the waves in the coastal areas is called coastal erosion.
  9. Vibration or movement of the upper layers of the earth due to the pressure created inside is called Earthquake.
  10. What are the preventive measures for cyclones?
    Answer: The preventive measures can be taken for cyclones are,
    a. Evacuation of people from low-lying areas.
    b. Ready to keeping generators, boats, helicopters and other transport facilities.
    c. Re-routing trains and buses from the cyclone-prone areas.
    d. Keeping people constantly informed about the movement of the cyclone.
    e. Keeping the army battalions ready.
    f. Ready to keeping food, potable water and clothes ready.
    g. Ready to keeping medicines and medical facilities ready.
  11. What are the Effects of floods?
    Answer: The Effects of floods are as follows.
    a. Floods are causes, loss of shelter, property, land and crops of the people.
    b. Telecommunication, electricity supply and transport facilities get affected.
    c. Besides washing away the fertile upper layers of soil, a lot of trees are destroyed.
    d. Stagnant water in the low lands leads to dangerous diseases.

  1. Mention the Flood control measures.
    Answer: The Flood control measures are,
    a. To control floods, bunds should be constructed on either side of rivers.
    b. Constructing dams across rivers, collecting water in reservoirs and directing the water to other places.
    c. Establishing centers to issue flood warnings.
    d. Afforestation in the river basins will prevent soil erosion, and also reduce accumulation of silt in the rivers there by reducing the chances of floods.
  2. What are the causes for Landslides?
    Answer: The causes for Landslides are,
    a. In the mountainous areas and coasts, constantly flowing water and tides remove soil creating slopes leading to landslides.
    b. When railways, roads and canals are constructed in the steep mountainous areas, the slopes become steeper leading to landslides.
    c. Collection of loose soil on clay soil layer can enhance steep slope formation leading to landslide.
    d. Landslides are common in the mining areas. Excavation of earth to reach the ore deposits deep down can cause landslides.
    e. Deforestation and deep tilling of the slopes can cause landslides.

  1. What are the effects of Landslides?
    Answer: The effects of Landslides are,
    a. Flowing small rivers are checked by landslides.
    b. Transportation is affected.
    c. Streams and many plants get submerged.
    d. Landslides can cause loss of life and damage to property.
  2. Mention two effects of Coastal Erosion
    Answer: The two effects of Coastal Erosion are,
    a. Large amount of land mass submerg into the sea due to coastal erosion by waves.
    b. Many houses and also property get loss and damaged.

  1. What are the reasons for earthquake?
    Answer: The reasons for earthquake are,
    a. Pressure increases in the interior of the earth.
    b. Change in the Magma from one part to another.
    c. Urbanisation.
    d. Deforestation, Construction of Dams, Mining activities etc.,
  2. Mention the places of India which earthquakes are happened?
    Answer: The occurrence of earthquakes is fairly widespread. The northern Himalayas, East Assam, Gujarat in the West have witnessed most of the earthquakes. In South India, Koyna, Latur and other places have experienced some earthquakes.

  1. What are the measures can be taken in the case of Natural disasters?
    Answer: Distribution of food, drinking water, distribution of medicine, temporary shelter facilities, necessary basic amenities, essential services to be provided in the case of Natural disasters.

5th Standard Karnataka English POEM 10 – ROADWAYS

yakshadeepa
-
0

5th Standard Karnataka English POEM – 10

ROADWAYS

Glossary :

bronzed: tanned (of skin)

forth: forwards

lures: attracts

homewards: towards home

quest of: in search of / seeking

Comprehension:

I. Answer the following questions:

1. What do the words “heaving” and “shining” refer to?

Answer: The words “heaving” and “shining” refers to a wet road. That means on the route of sea.

2. The word “road” means a track for moving. Is the word “road” used to mean this in the poem? What are the other possible meanings of the word?

Answer: The other possible meanings of the word ‘road’ in this poem was ‘the way what we have to achieve in our life’.

3. Is the poem an expression of the poet’s liking for a journey by sea?

Answer: Yes, The poem an expression of the poet’s liking for a journey by sea. The Poet likes the journey on sea.

4. What is the significance of all the “directions” in the poem?

Answer: The significance of the use of all the directions like North, east, south and west is than man should be ready to travel in all the directions in his life. He should be courageous in quest of knowledge and the purpose for achieve something special in here on the earth.

5. Why does the poet say the road that leads to shipping, is the right road for him?

Answer: The poet say the road that leads to shipping, is the right road for him because he thinks a road without earth’s road-dust

is the right road for him. 

6. “In quest of that one beauty God put me here to fail.”  What does “that one beauty” refer to?

Answer: “That one beauty” refers to the motive to achieve something in our life.

7. How is the poet’s road different from the road of the other men?

Answer: The road of other men leads to their house. The poet’s road is different as it leads him in various directions like north, south, east and west in order to find the motive to achieve something in his life,

8. Why is the wind described as salt sea wind?

Answer: The wind is described as salt sea wind because wind over the salty sea is blowing and it leads to salt spray in poet’s eyes.

9. Describe the road that the poet would like to take. Example: bronzed sailors go.

Answer: The poet say the road that leads to shipping, is the right road for him because he thinks a road without earth’s road-dust is the right road for him.  It is a wet road to all directions like north, south, east and west in order to find the motive to achieve something in his life.

10. Why do you think the poet wants to sail all the time?

Answer: The poet wants to sail all the time because god has sent him to search for that one beauty means the motive to achieve more of life.

11. Do you think the poet loves travelling? Justify your answer.

Answer: Yes, The poet loves travelling because he has an inner urge to explore new places and gain new experiences. He observes what he sees with an open mind and closely explores everything. 

The Convergence of the Twain

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7th English Poem – 8

The Convergence of the Twain

(Lines on the loss of the “Titanic”)

Glossary :

convergence : coming together towards a common point.

twin : two (old use, poetical).

smart : elegant, fashionable

stature : size and importance

grace : quality of being beautiful.

Titanic : (n) name of the ship, it comes from “Titan’’ (in Greek legend) one of a family of giants who ruled the world.

hue : the degree of brightness in colour.

iceberg : a large piece of ice floating in the sea, most of which is below the surface.

titanic : (adj) of great strength, size, power,

importance etc.

alien : here, so different as to be the opposite of one another; incompartible.

shadowy : here, hidden, causing a feeling

of mystery and fear.

In shadowy silent distance : This phrase makes the

reader feel something mysterious and fearful.

No mortal eye could see : no one could foretell.

intimate welding : close joining.

history : here, story.

anon : adv. (old use, poetical) in a short time, soon.

Spinner of the years : fate.

consummation : the point at which something is made complete.

Come, let us talk about this poem.

Take turns with your partner to ask or answer the questions given below. Explain to him or her why you think your answer is correct. Quote from the poem if necessary. Write down your answers.

  1. In the first three lines the poet speaks of two things. What are they?

Answer:  In the first three lines the poet speaks about smart ship and iceberg.

  • The poet uses the word “grew” twice. What does he mean in each case?

Answer: The poet uses the word “grew” twice. The word ‘grew’ once signifies the ship’s development and construction, signifying its increasing size and sophistication as it was built. In second time the word ‘grew’ means the iceberg gradually coming closer to the ship in the vast ocean, highlighting the unseen danger and the growing potential for a collision. The first ‘grew’ describes the science and technology and the second ‘grew’ describes the growth of danger in the sea.

  • What does he say about the ship’s qualities?

Answer: He says that the ship has grown into a greater height and also the quality rendered being beautiful to look at, and also the degree of brightness in colour is also grown.

  • What is mysterious and fearful? What phrase expresses this idea?

Answer: Mysterious means something that is not known and fearful means something to be afraid of. The phrase ‘In shadowy silent distance grew the iceberg too’ expresses this idea.

  • In what way are the ship and the iceberg “alien”? Explain.

Answer:   The ship and the iceberg are considered “alien” because they are entirely different words and opposite to one another. The ship is a man-made construct of human technology, while the iceberg is a natural phenomenon from the remote. The ship is a product of human, while the iceberg is a purely natural creation.

  • When you are playing with a top, you spin it and make it spin on the floor. The force of spinning also makes it go round and round in a circle. Now, our earth also does the same. It goes round and round the sun, spinning. So, who is “the Spinner of the years” :- a. the earth? b. the sun? c. the Almighty? d. the fate?

Answer: The Fate.

  • Two things became historical facts in navigation. What were they?

Answer:

In Thomas Hardy’s poem “The Convergence of the Twain,” the two historical facts that converged are the construction of the Titanic, representing human hubris and technological pride, and the simultaneous formation of the iceberg that would ultimately sink it, signifying the indifferent power of nature; essentially, the collision between human achievement and the natural world. 

8. The Atlantic Ocean is vast . The Titanic and the iceberg are mere splash in it. Yet, one obstructs the other in its course. There was a head-on collision. This was the amazing event. (Supply the missing words)

9. The iceberg and the ship were alien. They were like the two hemispheres. Explain what this means.

     Answer: The iceberg and the ship were alien. They were like the two hemispheres. Here it means they are different from one another one is natural and the other one is artificial, man-made, as to be the opposite of one another. The two sides purposefully created by the mysterious creator and they have ever since been coming close to their ultimate clash, this sentence gives the idea that human pride was shattered when the ship sank. 

10. The event that brought death and destruction was like play to someone. Which two lines say so?

Answer: Till the Spinner of the Years…  Said “Now!” and each one hears” these two lines show the event that brought death and destruction was like play to someone. 

11. Consider the words – ‘‘……And each one hears …..” This means there were two/three/many who heard. (Underline the correct word)

Answer: Two

12. Consider the word “consummation”. At what point of time in the short life of the ship was the consummation?

a. When the ship stood in the dock in all its glory.

b. When it began to leave and the passengers on the deck were cheered by the people on the ground.

c. When it reached its maximum speed in the open sea.

d. None of the above.

Answer: b) When it began to leave and the passengers on the deck were cheered by the people on the ground.

13. In describing the collision the poet has used three phrases and one word. Scan the poem and find them.

            Answer: The three phrases and one word used by the poet when describing the collision.

  1. Consummation
  2. Paths coincident
  3. Twin halves
  4. Jar two hemispheres

D. Writing

Write a short summary of the poem in your own words.

Answer; Thomas Hardy was an English novelist and poet. He described the Titanic incident in this poem. The smart ship named Titanic is being built with stature, grace and hue the iceberg is also taking shape far away. Both, ship and iceberg are totally different like Alien to each other and when they came together it became history. It was a coincident that their paths are bent towards each other and one day it happened, the ship and the iceberg came together and consummation took place and the incident happened. In this incident or accident all the passengers in the Titanic were died.

5th Standard, English LESSON 10 – MOVING PICTURES

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5th Standard, English LESSON – 10

MOVING PICTURES

Glossary :

tycoon : a powerful businessman

breeder : one who keeps (animals) for the purpose of breeding animals

galloping : moving swiftly

hooves : the horny covering encasing the foot in certain animals, as the horse and ox.

hired : paid for services

capture : catch

eccentric : abnormal

sustained : suffered

acquitted : declared innocent

emigrate : move from one country to another to reside there

Comprehension :

I. Answer the following questions in a sentence or two each.

1. What was Stanford’s contention of a galloping horse?

Answer: Stanford had an argument over whether a galloping horse ever has all four hooves off the ground or not. Stanford believed that hooves of horses sometimes left the ground completely. So Stanford hired an English photographer named Edward Maybridge with the intention of capturing the truth on a photographic plate.

2. What was “the truth” that Stanford wanted to capture on a photographic plate?

Answer: Experts and artists alike agreed that the hooves of horses always kept at least some contact with the ground. Stanford believed that hooves of horses sometimes left the ground completely. So Stanford hired an English photographer named Edward Maybridge with the intention of capturing the truth on a photographic plate.

3. Why did Maybridge set up a battery of sixteen cameras parallel to the race track?

Answer: Maybridge set up a battery of 16 cameras parallel to a race track in Sacramento with each camera’s shutter connected to a wire stretched across the race track. As the horse galloped past, its legs tipped the shutters in an order, creating a series of photographs, showing the portion of the horse at each instant. He wanted to prove that hooves of horses sometimes left the ground completely.

4. Who helped Stanford to prove himself right?

Answer: English photographer named Edward Maybridge helped Stanford to prove himself right. The horses sometimes left the all four hooves off the ground.

5. What was the special feature of the lightweight camera?

Answer: The special feature of the lightweight camera was, light weight camera and projection systems capable of making movies that could be viewed by an audience.

II. Read the extracts and answer the questions that follow.

1. ‘‘He had to wait five years for an answer.”

a. Who does “he” refer to?

Answer: The word “he” refers to ‘Sanford’.

b. What “answer” was he waiting for?

Answer: The “answer” was he waiting for was galloping horses sometimes left the ground completely.

c. Why had he to wait five years?

Answer:  He had to wait for five years because Maybridge was an eccentric because of serious head injuries sustained in a stage-coach accident. In 1875, after being tried and acquitted of the murder of an individual, he stayed in central America for a short while. He returned in 1875.

2. ‘‘They gave the first demonstration of their cinematograph system.”

a. Who does “they” refer to?

Answer: The word “they” refers to French photographic materials manufacturer Antoine Lumiere and his sons.

b. When was the first demonstration given?

Answer: The first demonstration given in March 1895.

c. What is a cinematograph system?

Answer: Cinematograph system is a light weight camera and projection systems capable of making movies that could be viewed by an audience.

III. Say whether the following statements are True or False.

  1. Stanford was a racehorse jockey.

Answer: False

2. Experts and artists agreed that hooves of horses always kept some contact with the ground.

Answer: True

3. The images proved all of them wrong.

Answer: True

4. Stanford believed that sometimes the hooves of horses don’t have any contact with the ground.

Answer: True

5. Thomas Edison and his assistant invented the Kinetograph.

Answer: True

Language exercise

I. Vocabulary

One word substitution (look into the dictionary for help):

Ingenious, Encyclopedia, Portrait, Biosphere, Eccentric

1. Part of the earth where life is found – Biosphere

2. A person with strange habits – Eccentric

3. A book giving information on all branches of knowledge – Encyclopedia

4. A painting, drawing or photograph of a person especially of the head and shoulders – Portrait

5. Skillful in inventing – Ingenious

7th Social History, CHAPTER 21 – PROGRESS IN DIFFERENT FIELDS

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7th Social History CHAPTER 21

PROGRESS IN DIFFERENT FIELDS

EXERCISES

I Fill up the blanks with correct word

1. Bengaluru is called the _____Silicon____ city.

2. The world’s first biologically coloned animal is ___ Sheep.

3. The government of Karnataka introduced its industrial policy in the year _____1996____

4. The one who said that ‘cottage industries are the lamps that guide a country on the path of progress’ was ____Mahatma Gandhiji_____ .

II Answer the following in two or three sentences each.

1 What is meant by communication system?

Answer: The process of sending news or information from one person to another or from one place to another is known as ‘Communication System’

2 Which are the three types of mass media?

Answer: The three types of mass media are,

1. Print media

2. Electronic media

3. Entertainment media

3 What is meant by ‘Information Technology’? 

Answer: The creation and spread of information with the help of technology is called Information Technology.

4 What do you mean by ‘Biotechnology’?

Answer: The process of utilizing the features of organisms to obtain useful products through technology is called Biotechnology.

5 Which are the districts in Karnataka that have Biotechnology Parks?

Answer: Biotechnological Parks have been established in the Agriculture Universities of Bengaluru and Dharwad. Similarly, in order to make use of marine resources in the coastal areas, a biotechnological centre has been established at Karwar. An Agricultural Biotechnological Institute has been established at Dharwad. 

6 Explain the importance of organic farming.

Answer: Modern cultivation methods are being adopted in agriculture and production is being increased. People have realized the ill-effects of the excessive use of chemical fertilizers and pesticides. Recently Save Environment Movement has attempted to bring awareness in the government. Hence, the government has taken measures to encourage the use of organic manure.

7 What is meant by ‘Soil Erosion’?

Answer: The washing away of the upper fertile layer of soil due to natural processes like wind, rain and floods is called ‘soil erosion’. Soil erosion also takes place when forests are destroyed or wrong practices of cultivation are followed.

Some more questions:

  1. What are the Measures taken for the development of agriculture?

Answer: The Measures taken for the development of agriculture are,

1. Irrigation system

2. Emphasis on conservation of soil

3. Encouragement to organic farming

2. What are the major industries of Karnataka?

Answer: The major industries of Karnataka are,

  1. Iron and Steel industry
  2. Aluminium industry
  3. Cotton textile industry
  4. Silk industry
  5. Sugar industry
  6. Paper industry
  7. Electronic industry
  8. Cement industry etc

3 .  What are the important irrigation projects of Karnataka?

Answer: The important irrigation projects of Karnataka are Tungabhadra project, Upper Krishna project, Bhadra, Ghataprabha, Malaprabha, Hemavati, Harangi, Vanivilas, Karanja,Varahi, Bennetore, Hipparagi and other projects.

7th Social History, CHAPTER 20 – KARNATAKA-ECONOMIC AND SOCIAL TRANSFORMATION

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7th Social History CHAPTER 20

KARNATAKA-ECONOMIC AND SOCIAL TRANSFORMATION

EXERCISES

I Fill in the blanks with suitable words.

1 B.D. Jatti was the Vice President of India.

            Answer: ex-Vice President

2 In 1974 D.Devaraj Urs  was the Chief Minister of Karnataka.

            Answer: D.Devaraj Urs

3 In 1975 L.G.Havanur  was the First Chairman of Backward Classes Commission.

Answer: L.G.Havanur 

4 The architect of the Panchayat Raj system in Karnataka was Sri Nazeer Sab

Answer: Sri Nazeer Sab

II Answer the following in two or three sentences each.

1 What is ‘land reform’?

Answer: The measures implemented in order to solve the problems with regard to land holdings are called Land Reforms.

2 What were the major land reforms implemented in Karnataka?

Answer: The major land reforms implemented in Karnataka are,

  1.  Abolition of the Zamindari system
  2. Reforms in the Tenancy system
  3. Maximum Limit on land holdings
  4. Creation of Economic holdings
  5. Development of Co-operative farming

3  What is meant by ‘economic holdings’?

Answer: The land holdings which enable the cultivator to earn sufficient income for himself and his family to lead a comfortable life after accounting for all his expenses, are called ‘Economic holdings’.

4 Why has the Karnataka government fixed the limit for the maximum area of land that can be owned by a family?

Answer: For removing or Abolition of the Zamindari system, the Karnataka government fixed the limit for the maximum area of land that can be owned by a family.

5 What is ‘co-operative farming’?

Answer: Farmers voluntarily form co-operative associations, give their lands for collective supervision to co-farmers and cultivate the lands together. When the crop is harvested and sold, they set aside money for long-term development of the land and divide the rest of the money among themselves. This is ‘Co-operative Farming System’.

6 How did the L.G.Havanur Commission identify the backwardness of a community?

Answer: The percentage of students of different castes who passed in the S.S.L.C. examination in 1975 was taken as the criterion for determining the backwardness of those castes. That is how the L.G.Havanur Commission identified the backwardness of a community.

7 Why is the Panchayat Raj system significant?

Answer: Panchayat Raj system can be defined as the decentralization of administration. It aims at giving authority to the local people to participate in administration and take decisions. The Panchayat Raj system is significant because, the Panchayat Raj system laid a solid foundation for the birth of democratic bodies at the grassroot level in Karnataka.

Some more questions :

  1. What are the three levels of the administrative system of Karnataka?

Answer: The three levels of the administrative system of Karnataka are,

  1. Gram Panchayat
  2. Taluk Panchayat
  3. Zilla Panchayat

2 . What are the main features of the 1974 Land Reform (Amendment) Act?

Answer: The main features of the 1974 Land Reform (Amendment) Act are,

  1.  It cancelled all kinds of tenancy.
  2.  The tiller was given the opportunity to establish his right on the land that he was cultivating.
  3.  All the lands under tenancy came into the possession of the government. Those who wished to establish their rights on the land and those who wanted compensation had to apply through a tribunal.
  4.  The decision of the tribunal was final. Its judgement could be questioned only in the High Court.
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