Environmental Studies MCQ : Set-05

MCQ Questions On Environmental Studies .

Answer are given in Bold highlight . 

1. The efficiency of energy flow in the ecosystem is about .

  1. 1% .
  2. 10% .
  3. 50% .
  4. 100%

2. The most harmful environmental pollution from nuclear reactor is 

  1. radioactivity .
  2. particulate formation .
  3. Thermal pollution .
  4. noise pollution .

3. The term sustainable development was first used by  

  1. World Development Report  .
  2. Brundtland Report  .
  3. World Environment Report .
  4. None of the above.

4. The term biodiversity is coined by

  1. W.G.Rosen .
  2. Ronald Coarse
  3. Rachel Carson .
  4. None of the above.

5. The conversion of ammonia to nitrate is known as

  1. Ammonification .
  2. Nitrification .
  3. Denitrification .
  4. All of these .

6. Which of the following enhances soil fertility ?

  1. Crop rotation .
  2. Improved methods of agriculture .
  3. Using new seed verities .
  4. Irrigation .

7. Energy is returned to the atmosphere in the form of

  1. Potential energy .
  2. Metabolic energy .
  3. Heat .
  4. Vapors .

8. The presence of Ozone layer in the atmosphere was first observed by

  1. W.G.Rosen .
  2. Ronald Coarse .
  3. Chapman .
  4. None of the above .

9. The term Green House Effect was coined by

  1. Ronald Coarse .
  2. Garret Hardin .
  3. J.Fourier .
  4. None of these  .

10. The species which are likely to become extinct in the near future is called

  1. Rare species .
  2. Vulnerable species .
  3. Endangered species .
  4. Indeterminate species .

11. Threatened species include

  1. Rare species .
  2. Vulnerable species .
  3. Endangered species .
  4. All the above

12. Global warming is a consequence of—————-

  1. Acid rain .
  2. Greenhouse effect .
  3. Depletion of ozone layer .
  4. Radioactive fall out .

13. The study of individual organism is known as

  1. Syn ecology .
  2. Population ecology .
  3. Autecology .
  4. Human ecology .

14. Phagotropic mode of nutrition is found in —————-

  1. Products .
  2. Consumers .
  3. Decomposers .
  4. All of these .

15. An example of e-waste is 

  1. Paper .
  2. Plastic .
  3. Industrial effluent .
  4. Mobile phone .

16. Which of the following is not a waterborne disease ?

  1. Measles .
  2. Typhoid .
  3. Cholera .
  4. Hepatitis .

17. __________ is an organism used to gauge the quality of an ecosystem.

  1. Decomposers .
  2. Predator .
  3. Bio-remediator .
  4. Bioindicator .

18. Which of the following facts are incorrect ?

  1. Global warming is the rise in the average temperature of the earth’s climate system
  2. Eutrophication is observed in water bodies .
  3. The greenhouse effect is a natural phenomenon .
  4. Ozone is harmless to breathe .

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

  1. PANs .
  2. Ozone .
  3. Carbon monoxide .
  4. Nitrogen Dioxide .

20. Which of the following statements is true about smog ?

  1. Smog is derived from the fog .
  2. Smog is derived from smoke .
  3. Smog is derived from water vapor .
  4. Smog is derived from both fog and smoke .

21. Which of the following diseases are caused by smog ?

  1. Rickets .
  2. Bronchitis .
  3. Breathing Problems .
  4. All of the above .

22. The protocol which decided to completely phase out CFC is

  1. Cartagena protocol .
  2. Stockholm Convention .
  3. Montreal protocol .
  4. Kyoto protocol .

23. Which of the following is said to be a biodegradable waste ?

  1. Plastics .
  2. Glasses .
  3. Eggshell .
  4. Polythene .

24. The uses of CFCs are

  1. Insulators .
  2. Aerosol propellants .
  3. Refrigerants .
  4. All of the above .

25. The ozone layer is present in –

  1. Mesosphere .
  2. Thermosphere .
  3. Stratosphere .
  4. None of the above .

26. Which of the following are the negative health effects of noise pollution ?

  1. Hypertension .
  2. Hearing loss .
  3. Stress and headache .
  4. All of the above .

27. Wildlife week is celebrated from

  1. 2nd October to 8th October .
  2. 15th October to 21st October .
  3. 14th June to 20th June.
  4. None of the above .

28. CNG stands for

  1. Common Natural gas .
  2. Compressed National gas .
  3. Compressed Natural gas .
  4. Certified National gas .

29. Animals whose primary source of food is based on plants are known as

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

30. Which of the following device is used to measure the atmospheric humidity ?

  1. Photometer .
  2. Auxanometer .
  3. Hygrometer .
  4. None of the above .

31. The year declared as the “water year” by the Indian Government is

  1. 2010 .
  2. 2005 .
  3. 2006 .
  4. 2007 .

32. What kind of Eco-system is known as sustainable ?

  1. The one in which all species are in balance .
  2. The one in which there are no animals .
  3. The one in which animals feed on each other .
  4. All of these .

33. Which of the following statement is TRUE ?

  1. Eco-Systems may vary in size .
  2. Eco-Systems are always very large .
  3. Eco-Systems are always very small.
  4. None of these is true.

34. Plants growing under direct sunlight are known as

  1. Heliophytes .
  2. Sciophytes .
  3. Psamophytes .
  4. Dicots .

35. What type of food chain is it ?

Dead animals → blowfly maggot → maggots → frog → snake .

  1. Detrital food chain .
  2. Decomposer food chain .
  3. Predator food chain .
  4. Grazing food chain .

36. “The pyramid of energy is always upright” states that

  1. The energy conversion efficiency of herbivores is better than carnivores .
  2. The energy conversion efficiency of carnivores is better than herbivores .
  3. Producers have the lowest energy conversion efficiency .
  4. Energy conversion efficiency is the same in all trophic levels .

37. Plant species with a wide range of genetic distribution evolve into a local population known as

  1. Ecotype .
  2. Population .
  3. Ecosystem .
  4. Biome .

38. Edaphic factor refers to

  1. Water .
  2. Soil .
  3. Relative humidity .
  4. Altitude .

39. The following is an example of Terrestrial Biome

  1. Tropical rain forest .
  2. Rivers .
  3. Streams .
  4. All of the above .

40. Terrestrial biomes has a rapid exchange of

  1. Carbon dioxide .
  2. Oxygen .
  3. Water .
  4. All of the above .

41. Ecosystem is smallest unit of

  1. Ionosphere .
  2. Lithosphere .
  3. Biosphere .
  4. Mesosphere .

42. This is true about secondary succession

  1. Follows primary succession .
  2. Takes place on a deforested site .
  3. is similar to primary succession except that it has a relatively slower pace .
  4. Begins on a bare rock .

43. This about ecological succession is incorrect 

  1. Food chain relationships become more complex .
  2. Species diversity increases as succession proceeds .
  3. Role of decomposers becomes all the more important .
  4. is a random process .

44. Process of the successful establishment of species in a new area is known as

  1. Climax .
  2. Sere .
  3. Ecesis .
  4. Invasion .

45. Ecological Succession is an important function of an Eco-system. Which of the following statement/s about Ecological succession is/are correct ?

(1) Succession refers to the changes in population or community structures that occur at the boundary of two habitats.

(2) It is a universal process of directional change in vegetation and animal life on an ecological time scale.

Select the correct code

  1. 1 only .
  2. 2 only .
  3. Both 1 and 2 .
  4. Neither 1 nor 2 .

46. In context of types of ecological successions, consider the following statements and identify the correct one/s

(1) Autogenic Succession is brought about by living inhabitants of the community itself.

(2) Allogenic Succession is brought about by the external forces.

Select the correct code

  1. 1 only .
  2. 2 only .
  3. Both 1 and 2 .
  4. Neither 1 or 2 .

47. Which of the following is an anti-forest conservation activity ?

  1. Preservation of wild animals .
  2. Preservation of fires .
  3. Clear felling .
  4. Economy in lumbering .

48. The energy produced by the hydel-power plant is

  1. Non-polluting and non-renewable .
  2. Polluting and non-renewable .
  3. Non-polluting and renewable .
  4. Polluting and renewable .

49. Which one represents the regulative function of forests ?

  1. Storage and release of gases .
  2. Production of essential oils .
  3. Production of wood .
  4. Conservation of water and soil .

50. ‘Ozone-hole’ means

  1. A large sized hole in the ozone layer .
  2. Thinning of the ozone layer .
  3. Small holes scattered in the ozone layer .
  4. Thickening of ozone in the ozone layer

 

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