Conservation of plants and animals Worksheet-10

Conservation of plants and animals Worksheet-10

 

True/False:

  1. Deforestation means cutting of forests.

  2. Deforestation is done for procuring land for cultivation, building houses and factories, making furniture or using wood as fuel.

  3. Aforestation increases the temperature and pollution level on the earth.

  4. Deforestation increases the level of carbon dioxide in the atmosphere.

  5. Ground water level gets lowered due to deforestation. 

  6. Plants need carbon dioxide for respiration. 

  7. Deforestation causes global warming.

  8. The increase in temperature on the earth disturbs the water cycle and may reduce rainfall.

  9. Planting more trees can cause drought.

  10. Deforestation leads to the change in soil properties.

  11. Physical properties of the soil get affected by plantation and vegetation.

  12. Removal of the top layer of the soil is called soil erosion.

  13. Due to planting more trees fertile land gets converted into deserts.

  14. Conversion of fertile land into deserts is called desertification.

  15. Deforestation leads to a decrease in the water holding capacity of the soil.

  16. Hydrosphere is that part of the earth in which living organisms exist or which supports life.

  17. Biodiversity refers to the variety of organisms existing on the earth.

  18. India is eighth on a list of 12 mega-biodiversity countries in the world.

  19. North-East India and the Western Ghats of England are very rich in biodiversity.

  20. India has more than half of the world’s wild tigers.

  21. Wildlife sanctuaries, national parks, biosphere reserves, etc are unprotected areas for plants and animals present in that area.

  22. Sanctuaries, national parks and biosphere reserves are protected area for plants and animals.

  23. The biosphere reserves help to maintain the biodiversity and culture of that area.

  24. Satpura is one national park of Pachmarhi Biosphere Reserve.

  25. The Pachmarhi Biosphere Reserve consists of two wildlife sanctuaries named Bori and Pachmarhi.

 

Answer:

  1. True

  2. True

  3. False: Deforestation increases the temperature and pollution level on the earth.

  4. True

  5. True

  6. True

  7. True

  8. True

  9. False: deforestation can cause drought.

  10. True

  11. True

  12. True

  13. False: due to deforestation fertile land gets converted into deserts.

  14. True

  15. True

  16. False: Biosphere is that part of the earth in   which living organisms exist or which supports life.

  17. True

  18. False: India is sixth on a list of 12 mega-biodiversity countries in the world.

  19. False: North-East India and the Western Ghats of India are very rich in biodiversity.

  20. True

  21. False: Wildlife sanctuaries, national parks, biosphere reserves, etc are protected areas for conservation of plants and animals present in that area.

  22. True

  23. True

  24. True

  25. True