Question

please answer these questions.

19. What is meant by deforestation? What are the causes of deforestation ?
20. What are the consequences of deforestation ?
21. What is desertification ? Name one human activity which may lead to desertification
22. Explain how, deforestation makes the soil infertile leading to desertification
23. What is global warming ? Name the gas which is responsible for causing global warming.
24. How does deforestation reduce rainfall on the one hand and lead to floods on the other ?
25. Define the term 'biosphere'.
26. Define (1) biodiversity, and (ii) ecosystem.
27. What will happen if the natural habitat of a wild animal is destroyed ?
28. What is the purpose of establishing several Biosphere Reserves, Wildlife Sanctuaries and National Parks
in India ?
29. State the role of Biosphere Reserves.
30. What is meant by the 'flora' and 'fauna' of an area ? Give two examples of flora and two examples of
fauna of Pachmarhi Biosphere Reserve.
31. Which of the following belong to 'fauna' and which belong to 'flora' of the Pachmarhi Biosphere Reserve ?
Sal, Arjun, Cheetal, Teak, Leopard, Fern, Blue bull, Barking deer, Mango, Wolf.
32. What is the difference between 'flora' and 'fauna'?
33. What is meant by 'species'? Give any five examples of species.
34. What do you understand by 'endemic species' ? Name two plant species and two animal species which
are endemic to Pachmarhi Biosphere Reserve area.
35. Name two man-made causes of deforestation and two natural causes of deforestation.
36. What is a Wildlife Sanctuary? Name any two Wildlife Sanctuaries in India. Where are these Sanctuaries
located ?
37. Name any two Bird Sanctuaries in India. Where are these located ?
38. What are the differences between a Biosphere Reserve and a Wildlife Sanctuary?
39. State the differences between a Wildlife Sanctuary and a Zoo.
40. What is a National Park? Name any two National Parks of India. Where are these National Parks located ?​

Answer 1

Answer:

Deforestation refers to the decrease in forest areas across the world that are lost for other uses such as agricultural croplands, urbanization, or mining activities. Greatly accelerated by human activities since 1960, deforestation has been negatively affecting natural ecosystems, biodiversity, and the climate.

Answer 2

Answer:

19. Deforestation is the process of cutting down of tree in large scale for producing goods to satisfy human needs.

20. The consequences of deforestation are as follows-

1 Loss of livelihood of tribals and forest gatherers .

2 cutting of trees in large scale cause disbalance between the concentration of oxygen and carbon dioxide.

3 Depletion of forest causes loss of environmental habitat of the animal and birds.