22447 Environmental Studies MCQ with Answers Unit no.1 | MSBTE

1. Abiotic environment does not include
a) air
b) water
c) soil
d) Plants
Ans: d

2. Chief source of energy in environment is ......
a) Sun
b) Fire
c) Moon
d) Stars
Ans: a

3. Energy is returned to the atmosphere in the form of
a) potential energy
b) metabolic energy
c) heat
d) vapours
Ans: c

4. Which of the following is the example of impact of development activities on Hydrosphere?
a) Air Pollution
b) Soil Pollution
c) Noise Pollution
d) Water Pollution
Ans: d

5. Zone consisting air, water and soil is known as....
a) Atmosphere
b) Hydrosphere
c) Biosphere
d) Lithosphere
Ans:

6. Formation of Ozone is?
a) Oxidation Reaction
b) Reduction Reaction
c) Photochemical Reaction
d) None of the above
Ans: c

7. One of the following is not a type of environment. a) Physical environment
b) Man-made environment
c) Social environment
d) Hydrosphere
Ans: d

8. Social Environment includes ...
a) Traditions,
b) ethics,
c) Culture
d) All of the above
Ans: d

9. Physical environment is also called as...
a) Abiotic environment
b) Biotic environment
c) Man-made environment
d) Psychological environment
Ans: a

10. The term environment is derived from an old French word “enviro” means....
a) Outside
b) Inside
c) Surroundings
d) Biotic community
Ans:c

11. Which of the Following is not the impact of acid rain?
a) Acidification of soil
b) Deterioration of buildings
c) Loss of crops
d) Improve the taste of water
Ans: d

12. Major cause of increment in population growth is......
a) decrease in birth rate
b) decrease in mortality rate
c) illiteracy
d) none of the above
Ans: b

13. Which of the following is not a component of 4Rs?
a) Reduce
b) Resell
c) Reuse
d) Recover
Ans: b

14. Which one of the following is not a recyclable waste?
a) Metal
b) Plastic
c) Sand
d) Glass
Ans: c

15. The 4Rs principle is applicable for…
a) Public awareness
b) Environmental protection
c) Saving natural resources
d) All of the above
Ans: d

16. Layer which saves life from harmful effects of UV radiations is known as
a) Ozone Layer
b) Alpha Layer
c) Gama Layer
d) Infra-Red Layer
Ans: a

17. Greenhouse gases which is present in very high quantity is
a) Prop hen
b) Ethane
c) Carbon di-oxide
d) Methane
Ans: c

18. Burning of fossil fuels
a) Decrease green house gases
b) Increase green house gases
c) Increase level of oxygen
a) d)Increase level of ethane
Ans: b

19. One which is not considered as naturally occurring greenhouse gas is
a) Carbon di-oxide
b) Methane
c) nitrous oxide
d) ethane
Ans: d
20. The most harmful environmental pollution from nuclear reactor is
a) radioactivity
b) particulate formation
c) thermal pollution
d) Noise Pollution
Ans: c

21. Height of ozone above surface of Earth is
a) 30 – 50 kms
b) 10 – 20 kms
c) 15 – 30 km
d) 50 – 70 kms
Ans: c

22. Ozone layer is found in ....
a) Thermosphere
b) Stratosphere
c) Troposphere
d) Mesosphere
Ans: b

23. What type of radiation is trapped on the earth's surface by the green house effect?
a) UV rays
b) ? -rays
c) X-rays
d) IR rays
Ans: a

24. Biotic environment includes
a) producers
b) consumers
c) decomposers
a) d)All above
Ans: d

25. Greenhouse gases which is present in very high quantity is
a) Prophen
b) Ethane
c) Carbon di-oxide
d) Methane
Ans: c

26. Color of ozone molecule is
a) Blue
b) White
c) Pale Yellow
d) Pale Green
Ans: a

27. 71% of earth surface is covered with:
a) Land
b) Air
c) Water
d) Coal
Ans:c

28. Of the total water on the Earth, fresh water reserves constitue approximately–
a) 70 %
b) 2.7%
c) 27 %
d) 8.9 %
Ans: b

29. Nitrous oxide (commonly called laughing gas) has been a matter of concern to environmentalist recently because–
a) it is thought to cause cancer at low concentration
b) it produce photochemical smog
c) it is a green house gas
a) None of the above
Ans: c

30. Public awareness of environment creates ----------------------
a) Environment protection
b) Environment degradation
c) Environmental improvement
d) Environmental cultivation
Ans: a

31. Major cause of Ozone depletion is due to which chemical ?
a) Chlorofluorocarbons
b) Polyphenols
c) Dioxins
a) None of the above
Ans: a

32. Air is composed of gases, water vapours and.........
a) dust particles
b) Rainfall
c) Snowfall
d)light
Ans: a

33. What is troposphere?
a) Portion of air
b) Portion of water
c) Lowest layer of atmosphere where we survive
d) Portion of sky
Ans: c

34. How is the atmosphere, hydrosphere and lithosphere connected ?
a) Hydrological cycle
b) Nitrogen cycle
c) Oxygen cycle
d) Carbon cycle
Ans: d

35. The area where all the living organisms interact with each other and their environment is ----------------
a) biosphere
b) exosphere
c) mesosphere
d) None of the above
Ans: a

36. Exchange of outgoing and incoming radiations that keep Earth warm is known as
a) greenhouse effect
b) radiation effect
c) infrared effect
d) ozone layer depletion
Ans: a

37. The portion of the earth and its environment which can support life is known as
a) crust
b) exosphere
c) biosphere
d) mesosphere
Ans: c

38. “Ozone Hole” is a ------------------------
a) Hole in the atmosphere b) Destruction of ozone layer
c) Hole in hydrosphere
d) Hole in atmosphere
Ans: b

39. The historical monument that is affected by acid rain is
a) Taj Mahal
b) Pyramid of Egypt
c) Pisa Tower
d) Golden Temple
Ans: a

40. Ozone is formed in the upper atmosphere by a photochemical reaction with
a) Ultra violet solar radiation
b) Infra red radiation
c) Visible light
d) All of the above
Ans: a

41. The amount of solar radiation reaching the surface of the earth is called as
a) Solar flux
b) Reflected light
c) Minerals
d) solvents
Ans: a

42. Biosphere is a) The solid shell of inorganic materials on the surface of the Earth b) The thin shell of organic matter on the surface of earth comprising of all the living things c) The sphere which occupies the maximum volume of all the spheres d) All of the above Ans: b

43. Which of the following conceptual sphere of the environment is having the least storage capacity for matter? a) Atmosphere
b) Lithosphere
c) Hydrosphere
d) Biosphere
Ans: a

44. Acid rain contains.....
a) Sulphuric acid
b) Hydrochloric acid
c) Oxalic acid
d) Acetic acid
Ans: a

45. High level radioactive waste can be managed in which of the following ways?
a) Open dumping
b) Composting
c) Incineration
d) Dumping in sealed containers
Ans: d

46. The objective of environmental education is
a) Raise consciousness about environmental education
b) To teach environmentally appropriate behaviour
c) Create an environmental ethic that fosters awareness about ecological inter-dependence of economics, social and political
d) All of the above
Ans: d

47. Which of the following is an example of impact of development activities on the Hydrosphere?
a) Air pollution
b) Soil pollution
c) Soil erosion
d) Water pollution
Ans: d

48. Environmental education is
mportant only at
a) Primary school stage
b) Secondary school stage
c) College stage
d) All of the above
Ans: d

49. The production of biogas from the waste is includes in......
a) Reduce
b) Reuse
c) Recycle
d) Recover Ans: d

50. Which one of the following is an abiotic component of the ecosystem? a) Bacteria
b) Plants
c) Humus
d) Fungi
Ans: c

51. The environment which has been modified by human activities is called
a) Natural environment
b) Anthropogenic environment
c) Modem environment
d) Urban environment
Ans: b

52. Hydrosphere includes
a) Animal
b) Plants
c) Soil
d) Water bodies
Ans: d

53. Important abiotic factor in environment include which of the following?
a) Temperature
b) Wind
c) Water
d) All of the above
Ans: d

54. Atmosphere may extents to a height of ......kms above the earth surface
a) 80
b) 8000
c) 800

d) 8
Ans: c

55. Which of the following is the correct sequence of 4Rs principle in waste hierarchy?
a) Reduce-Reuse-Recycle-Recover
b) Recover-Recycle-Reuse-Reduce
c) Recycle – Recover – Reuse- Reduce
d) Reuse-Recover-Reduce - Recycle
Ans: a

56. The 4Rs principle is applicable in…
a) Agriculture areas
b) Industrial areas
c) Municipal areas
d) All of the above
Ans: d