AECC1 ENVS PYQ Semester 1 CBCS - NBU

 

Also check: First Page - ENVS - 1st Semester Project

ANSWER

1. c) decomposer

2. c) nitrogen

3. a) aedes

4. d) none of these

5. b) sunlight

6. b) producers

7. 

8. a) unidirectional

9. a) only plants

10. b) producer of lakes

11. 

12. c) ivory

13. d) all of these

14. a) chemical oxygen demand

15. 

16. d) all of these

17.

18. d) all of these

19. b) thermal pollution

20. d) all of these

21) c) mercury

22) d) earthquake

23) d) Narmada

24. c) Chernobyl

25. d) S02

26. c) Jim Corbett National Park 

27. c) AIDS

28. c) Troposphere

29. c) 1986

30. b) Mulching

31. 

32. b) nitrification

33. c) biogeochemical cycle

34. d) Both (A) and (C)

35. d) Xerophytes

36. c) erosion

37. b) Seismometer

38. b) Nilgiri

39. a) Rhino

40. a) Bio-magnification