MCQs Environmental Studies 50+

1.Which one of the following is an example of non-renewable resources?

• A. Water
• Wind
• Vegetation
• Coal and minerals

Ans: D

2.Which of the following is not a method for water conservation?

• Rain water harvesting
• Improving irrigation efficiency
• Avoiding Water Wastage
• Groundwater Extraction

Ans : D

3.Which of the following conditions indicate the impact of global warming?

• Melting of glaciers
• Lowering down of sea level
• Changes in weather conditions
• Rise in global temperature

Ans : A , B & D

4.The life supporting gases are O2,Co2 and N2 and these are chiefly concentrated in

• Troposphere
• Exosphere
• Homosphere
• Stratosphere

Ans: A

5.Which of the following statement is TRUE?

• Eco-System may vary in size
• Eco-System are always very large
• Eco-System are always very small
• None of these in true

Ans : D

6.The method of rainwater harvesting which can be adopted by individual house owners is:

• Construction of recharge trenches
• On channel storage of water
• Creation of new water bodies
• Roof-top rainwater harvesting

Ans : D

7.What kind of eco system is known as sustainable?

• The one in which all species are in balance
• The one in which there are no animals
• The one in which animals feed on each other
• All of these

Ans : A

8.The area to which a species is biologically adapted to live is known as ________

•  Niche
• Habitat
• Successio
•  Community

Ans : B

9.The presence of which is necessary for photosynthesis

• Chloroform
• Chlorophyll
• Phosphorous
• Polymer

Ans : B

10. Autoecology deals with

• Ecology of species
• Ecology of many species
• Ecology of community
• All of the Above

Ans : A

11. IUCN was first organization who has given red list of

• Endangered species
• Growing species
• migrating species
• Extinct species

Ans : A

12.Genetic diversity is the

• Variation among the genes of the same species
• Variation among the genes of the different species
• Both a & b
• Non of the Above

Ans : A

13.Major causes of extinction of different species include

• Habitat loss and over hunting
• climate change and pollution
•  deforestation
•  All of the above.​

Ans : D

14. Term used for species which is in danger of being extinct in near future is

• Degradability
• Extinct
• Endangered
• Global biodiversity

Ans : C

15. Which one of the following is the part of vegetation belt?

• Arctic Zone
• Northern Temperate Zone
• Southern Temperate Zone
• All the above

Ans : D

16.Ozone can be found in

• ionosphere
• Mesosphere
• Stratosphere
• Exosphere

Ans : C

17. Chemicals released directly from a source into the atmosphere are known as

• Primary air pollutants
• Secondary air pollutants
• Both of the above
• Non of the above

Ans : A

18. What does “Ozone Layer” absorb?

• X-rays
• gamma-rays
• infrared rays
• ultraviolet rays

Ans : D

19. The combination of smallest nuclei to form heavier nuclei is

• nuclear fission
• nuclear fusion
• Both of above
• None of above

Ans : B

20. Bleaching of the leaf pigment is due to

• Nitrogen dioxide
• Sulphur dioxide
• Both of the above ‘
• None of above

Ans : B

21. which of the following is not a particulate pollutant

• Ozone
• Dust
• Soot
• Smoke

Ans : A

22. Air Pollution is severe in

• Densely populated areas
• Industrialised area
• Cities
• All of these

Ans : D

23. Anxiety is a

• Physical Disorder
• Annoyance
• Both of above
• None of above

Ans : C

24.Which one of the following is the major cause of algal bloom?

• Presence of heavy metals
• Contamination by pathogens
• eutrophication
• soil erosion

Ans : C

25. Which of the following is called the secondary air pollutant?

• NO2
• SO3
• CO
• CO2

Ans : A

26. The gaseous responsible for greenhouse effect are

• Carbon dioxide
• Methane
• both A and B
• A only

Ans : C

27. hlorofluorocarbons are powerful ____________ destroyer

• Metal
• Alloy
• Ozone
• None of Above

Ans : C

28. Weather can be characterized by

• Temperature
• Humidity
• Rain
• All the Above

Ans : D

29. Which of the following is near to the earth’s atmosphere

• Troposphere
• Stratosphere
• Both A & B
• B only

Ans : A

30. Stabilization of GHG Concentration in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system is the objective of

• Kyoto protocol
• Montreal protocol
• both of above
• none of above

Ans : A

31. The term “acid rain” refers to the presence of excessive ________in rain water

• Base
• Acid
• Metals
• Alloys

Ans : B

32. Environmental effects of global warming is

• Weather Extremes
• Rise in Sea Level
• Agriculture Production
• All of Above

Ans : D

33. which of the following are the issues involved inforcement of environmental law

• Illiteracy
• Ignorance
• Economic Reason
• All the above

Ans :

34. The environment (Protection) Act came into force in

• 1988
• 1986
• 1990
• 1981

Ans : B

35. Which of the following is a natural cause for landslides?

• Earthquakes
• Volcanic eruption
• Torrential rain
• All the above

Ans : D

36. Global warming can be controlled by

• Reduction in the use of fossil fuels
• Using cleaner production technologies
• Both A and B
• None of above

Ans : A

37. Which of the following is most vulnerable region of Landslide in India?

• Himalayan Ghats
• Western Ghats
• Both A & B
• None of above

Ans : C

38. Which of the following is the cause of Population Growth?

• Poverty
• Early marriage
• Illiteracy
• All the above

Ans : A

39. Birth rate is defined as

• Number of births per hundred people in a geographical area
• Number of births per people in a geographical area
• number of births per thousand people in a geographical area
• None of above

Ans :

40. Earthquake is a _______

• Natural phenomenon
• Unnatural phenomenon
• Constant
• None of above

Ans : A

41. Which of the following is the adverse effect of floods?

• Crop damage
• urbanization
• deforestation
• volcanic eruption

Ans :

42. Which of the following is anthropogenic disaster?

• Hurricanes
• Floods
• Toxic spills
• none of above

Ans : C

43 . Which of the following is the cause of flood?

• Deforestation
• Afforestation
• Water
• None of Above

Ans : C

44. The study of the trend in human population is called

• Photography
• Demography
• Choreography
• None of above

Ans : Demography

45. The point of origin of earthquake is

• Hypocentre
• Blast
• Landslides
• Destructive

Ans : Hypocentre

46. Which of the following conditions indicate the impact of global warming?

• Melting of glaciers
• Lowering down of sea level
• Changes in weather conditions
• Rise in global temperature.

Ans : A , C & D