Environmental Studies MCQ : Set-06

MCQ Questions On Environmental Studies .

Answer are given in Bold highlight . 

1. Biotic component of biosphere is not constituted by

1. Producers .
2. Consumers .
3. Decomposer .
4. Air .

2. Soil erosion can be prevented by 

1. Raising forests .
2. Deforestation
3. Excessive use of fertilizer .
4. Overgrazing by animals .

3. What would happen, if all the oxygen present in the environment is converted to ozone ?

1. We will be protected more .
2. It will become poisonous and kill living forms .
3. Ozone is not stable, hence it will be toxic .
4. It will help harmful sun radiations to reach earth and damage many life forms.

4. The functional aspects of the ecosystem are

1. Energy cycles .
2. Nutrient cycles .
3. Food chains .
4. All of the above .

5. Which of the following is also called Detrivores ?

1. Herbivores .
2. Decomposers .
3. Carnivores .
4. None of the above .

6. Which of the following activity is incorrect about the impact of human activities on the ecosystem ?

1. Depletion of ground water .
2. Extinction of species .
3. Decrease of forest area .
4. None of the above .

7. The type of forests grown in the Himalayan mountain region is called

1. Broad-leaved forests .
2. Coniferous forests .
3. Deciduous forests .
4. None of the above .

8. Which of the following is not a Biogeographic zone of India ?

1. Thar Desert of Rajasthan .
2. The Brahmaputra Plains .
3. South-east zone .
4. North-east zone .

9. What are the numbers of biodiversity hotspots in the world ?

1. 18 .
2. 28 .
3. 32 .
4. 36 .

10. Which of the following element is responsible for groundwater pollution in various states ?

1. Chlorine .
2. Fluoride .
3. Chemicals .
4. None of the above .

11. Which element present in the drinking water can lead to various fatal diseases ?

1. Calcium .
2. Arsenic .
3. Phosphorus .
4. None of the above .

12. Forest Conservation act was amended in which of the following year ?

1. 1952 .
2. 1963 .
3. 1988 .
4. 1978 .

13. Environmental studies is defined as the branch that deals with the

1. Design, study, and discovery of new materials .
2. The study of humanities, social, biological, and physical sciences .
3. Incorporate the information and physical sciences .
4. Approach about the natural world and the impact of humans on its integrity .

14. Which of the following is not a measure of sustainable water management ?

1. Preventing leakage from dams and canals .
2. Reducing the rate of surface run-off water.
3. Preventing loss in the municipal pipes.
4. Building small reservoirs in place of a few mega projects.

15. What is the world’s largest potential source of biomass energy ?

1. Animal waste .
2. Industrial waste .
3. Fibrous waste of the paper industry .
4. Fibrous waste of the sugar industry .

16. In an ecotone, the species which become abundant are called 

1. Edge species .
2. Keystone species .
3. Endemic species .
4. Foster species .

17. Which of the following is management option for air pollution ?

1. Regulations and standards .
2. Transport planning .
3. Using CNG as fuel .
4. All of these .

18. The term ‘Environment’ has been derived from the French word which means to encircle or surround

1. Environ .
2. Oikos .
3. Geo .
4. Aqua .

19. Which among the following is a climatic factor ?

1. Pressure .
2. Humidity .
3. Temperature .
4. All of the above .

20. Which of the following are major environmental issues involved in mining ?

1. Air pollution .
2. Water pollution .
3. Soil degradation .
4. All of the above .

21. Water logging is a phenomenon in which

1. Crop patterns are rotated .
2. Soil root zone becomes saturated due to over irrigation .
3. Erosion of soil .
4. None of the above .

22. Environmental impact assessment 

1. is the study of feasibility of a project .
2. is a study of bio-physical characteristics of the environment that may result from a human action
3. Both a and b .
4. None of the above .

23. A herbivore is also known as a 

1. Producer .
2. First order consumer .
3. Second order consumer.
4. Third order consumer .

24. The true end of any food chain is the 

1. Decomposer .
2. Predator .
3. Consumer .
4. Human .

25. Which of the following can act as a pioneer species in a xerach succession ?

1. Lichens .
2. Humans .
3. Herbs .
4. Animals .

26. In a pyramid of numbers in grassland ecosystems, the largest population is that of

1. Herbivores .
2. Primary consumers .
3. Secondary consumer .
4. Producers .

27. Which of these belong to the category of primary consumers in grazing food chain ?

1. Snakes and frogs .
2. Insects and cattle .
3. Eagle and snakes .
4. Cow and rabbit .

28. Which one of the following is not a gaseous biogeochemical cycle ?

1. Nitrogen cycle .
2. Carbon cycle .
3. Sulphur cycle .
4. Phosphorus cycle .

29. July 11 is 

1. World Environment Day .
2. World Population Day .
3. World AIDS Day .
4. World Education Day .

30. Group of interbreeding organisms found in a particular area is

1. Population .
2. Community .
3. Tribe .
4. Density .

31. In the breakdown of the ozone layer, the ozone (O3) directly reacts with

1. Ultraviolet light .
2. Chlorine atoms .
3. Oxygen atoms .
4. CFC molecules .

32. Thickness of ozone layer is measured in

1. Decibels .
2. Dobson unit .
3. Meter .
4. Armstrong unit

33. Which of the following statements about ozone is true ?

1. Ozone is a major constituent of photochemical smog .
2. Ozone is highly reactive .
3. It protects us from harmful UV radiations of sun .
4. All of the above .

34. Formation of hole in Ozone is maximum over 

1. India .
2. Europe .
3. Antarctica .
4. Africa .

35. Which of the following is not a potential adverse effect of global warming ?

1. More extreme weather patterns .
2. Retreat of glaciers .
3. Sea level rise .
4. An increase of UV-B radiation .

36. Excess atmospheric carbon dioxide increases greenhouse effect as carbon dioxide

1. Precipitates dust in the atmosphere .
2. Is opaque to infrared rays .
3. Reduces atmospheric pressure .
4. Is heavier than other gases .

37. The solar radiation that bounces off the earth back towards the atmosphere is mostly

1. Gamma radiation .
2. X-ray radiation .
3. Ultraviolet radiation .
4. Infrared radiation .

38. The two major impacts expected as a result of rising global temperatures are

1. Higher water levels in lakes and streams but more consistent flooding patterns .
2. Regional climatic changes and a rise in sea level .
3. Longer summers and drier winters .
4. Low water levels in lakes and streams and larger floodplains.

39. Which country has organized its cabinet meeting under the sea to drag attention of the world towards the Global Warming and its threats  ?

1. Maldives .
2. Sri Lanka .
3. Fiji .
4. Indonesia .

40. A river with high BOD value means 

1. Highly polluted .
2. Highly clean .
3. Highly productive .
4. None of the above .

41. Which of the following is the best indicator of SO2 Pollution?

1. Bryophytes .
2. Pteridophytes .
3. Lichens .
4. Algae .

42. The supersonic jets cause air pollution by the thinning of  

1. Carbon dioxide layer .
2. Sulphur dioxide layer .
3. Ozone layer .
4. Oxygen layer .

43. Increase in concentration of toxic level in each trophic level is referred to as

1. Eutrophication .
2. Biomagnification .
3. Bioaccumulation .
4. Bioconcentration .

44. Which one of the following regions in India is a hotspot of biodiversity ?

1. Sundarbans .
2. Western Ghats .
3. Eastern Ghats .
4. Gangetic plains .

45. Development activities on the hydrosphere cause 

1. Air pollution .
2. Soil pollution .
3. Water pollution .
4. Soil erosion .

46. Common energy source in Indian villages is 

1. Electricity .
2. Coal .
3. Sun  .
4. Wood and animal dung .

47. The one thing that is common to all fossil fuels is that they 

1. Were originally formed in marine environment .
2. Contain carbon  .
3. Have undergone the same set of geological processes during their formation .
4. Represent the remains of one living organisms .

48. Which of the below theory is related to non-renewable resources ?

1. Game Theory .
2. Phlogiston Theory .
3. Big Bang Theory .
4. Hotelling’s Theory .

49. Bill Gates, Chairman of the Board for Terra Power Company is associated in which of the following non-renewable resources ?

1. Earth minerals .
2. Fossil fuels .
3. Nuclear energy .
4. Metal ores

50. Which of the following nonrenewable energy is not classified under a fossil fuel ?

1. Nuclear .
2. Petroleum
3. Oil.
4.  Natural gas 

 

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