Description: Practice Class 10 Biology Chapter 16 MCQs on Man and His Environment. These important FBISE Biology MCQs include conceptual, knowledge-based, and exam-oriented questions for board preparation.
1. The branch of biology that deals with interactions between organisms and environment is called:
2. The place where an organism lives is called its:
3. Green plants are called producers because they:
4. Organisms that break down dead organic matter are:
5. The transfer of food energy from one organism to another is called:
6. Which gas is mainly responsible for global warming?
7. Organisms that eat plants are called:
8. The thin layer of atmosphere that protects Earth from ultraviolet rays is:
9. The role played by an organism in ecosystem is called:
10. Which process returns carbon dioxide to atmosphere?
11. Animals that feed on dead animals are called:
12. Which environmental issue is caused by excessive use of fertilizers?
13. The largest ecosystem on Earth is:
14. Which organisms convert atmospheric nitrogen into usable compounds?
15. A group of organisms of same species living in same area is called:
16. Which pollution mainly affects hearing ability?
17. The sequence of organisms where each is eaten by the next is called:
18. The recycling of nutrients between living organisms and environment is called:
19. Which process removes carbon dioxide from atmosphere?
20. Which type of organisms feed on both plants and animals?
21. Acid rain is mainly caused by oxides of:
22. Which layer of atmosphere contains ozone gas?
23. The interconnected food chains in an ecosystem form a:
24. Which organisms are primary consumers in a food chain?
25. The gradual replacement of one community by another is called:
26. Which human activity is mainly responsible for deforestation?
27. Which gas is released during decomposition?
28. Organisms living together with mutual benefit show:
29. Which pollutant is mainly responsible for smog?
30. Which level in food chain contains maximum energy?
31. Which environmental issue results from increased greenhouse gases?
32. Which organisms feed on dead organic matter?
33. Which cycle involves movement of water between Earth and atmosphere?
34. Which factor is abiotic in ecosystem?
35. Which process releases water vapours from plants?
36. Which gas is essential for photosynthesis?
37. Which environmental problem is caused by chlorofluorocarbons (CFCs)?
38. Which organisms convert dead matter into simpler substances?
39. Which level in food chain directly depends on producers?
40. Which environmental factor mainly determines climate of an area?
41. Which organisms occupy the first trophic level?
42. Which process increases oxygen level in atmosphere?
43. The harmful increase in nutrients in water bodies causes:
44. Which type of relationship benefits one organism and harms the other?
45. Which ecosystem has the highest biodiversity?
46. Which gas is released during burning of fossil fuels?
47. Which organisms are responsible for nitrogen fixation in leguminous plants?
48. The removal of forests on large scale is called:
49. Which factor is biotic in ecosystem?
50. The balance between organisms and environment is important for: