Previous Year Papers

21. While India’s human population is growing at an  astounding pace, the bird population is shrinking fast  mainly because:  1. there has been an abnormal increase in the number  of hunters.  2. bio-pesticides and organic manure are being used on  a large scale.  3. there has been a large-scale reduction in the  habitats of the birds.  4. there has been a large-scale use of pesticides,  chemical fertilisers, and mosquito repellents.  Select your answer correctly using the codes given  below:  Codes:

22. Which animal is the symbol of the World Wildlife Fund?

23. Which gas Ieaked out in the Bhopal Gas Tragedy  causing numerous deaths?

24. The highest trophic level in an ecosystem is obtained  by:

25. Which of the following statements are true for  bionomics?  Select the correct answer from the codes given below:  A. It literally means ‘management of life’  B. It is a synonym for ecology  C. It stresses on the value of natural system which  influences human systems  Codes:

26. Assertion (A): The Green Belt represents a planning  concept for controlling the physical expansion of large  cities.  Reason (R): It is an integral component of a city.  Select the correct answer using the codes given below:  Codes:

27. Assertion (A): Increase in the diversity of food webs  promotes ecosystem stability.  Reason (R): It increases the resilience of the ecosystem.  Codes:

28. The national forest policy aims at maintaining how  much of the total geographical area under forests?

29. Which one of the following ecosystems covers the  largest area of the earth’s surface?

30. Which of the following trees, once very popular in  social forestry, is now taken to be an environmental  hazard?

31. Match the two lists I and II with regard to bird  sanctuaries in Uttar Pradesh and find the correct  answer from the code given below:  List–I                                                               List–II  A. Nawabganj bird sanctuary                    1. Gonda  B. Okhla bird sanctuary                              2. Unnao  C. Samaspur bird sanctuary                      3. Ghaziabad  D. Parvati Aranga bird sanctuary             4. Rae Bareli  Codes:  A B C D

32. The project launched by the Tata Energy Research  Institute, New Delhi to document the country’s  degradation of the environment since Independence  and to develop a strategy for its regulation in the next  50 years is called:

33. The richest bio-diversity is found in:

34. Consider the following statements and select the  correct answer from the codes given below:  Assertion (A): The natural environment is clean  Reason (R): Human activities cause environmental  pollution.  Codes:

35. Which were the main objectives of National Forest  Policy?  Select the correct answer using the codes given below:  1. To ensure ecological balance  2. To promote social forestry  3. To bring one-third of the total area of the country  under the forest cover  4. To encourage mass community participation in forest  management  Codes:

36. Which of the following is a UNESCO heritage site?

37. Which one of the following has been recognised on  world network of Biosphere Reserves by UNESCO?

38. In social forestry, plantation of which of the following  types of trees is encouraged?

39. Assertion (A): Coal-based thermal power stations  contribute to acid rains.  Reason (B): Oxides of carbon are emitted when coal  burns.  Select the correct answer using the code given below:  Code:

40. The forest reserve in India, in which largest population  of elephants is found, is: