Environmental Studies MCQ : Set-03

MCQ Questions On Environmental Studies .

Answer are given in Bold highlight . 

1. Eutrophication means

1. Thermal change in water .
2. Filling up of water body with aquatic due to extra nourishment .
3. Solid waste .
4. None of the above .

2. Biochemical oxygen demand means

1. Industrial pollution .
2. Air pollution .
3. Polluting capacity of effluent .
4. Dissolved O2 needed by microbes to decompose organic waste .

3. The main components of photochemical smog is

1.  Water vapour .
2. Sulphur dioxide .
3. Oxides of nitrogen .
4. All of the above .

4. Deforestation generally decreases

1. Rainfall .
2.  Soil erosion .
3. Drought .
4. Global warming .

5. The term Alpha diversity refers to

1. Genetic diversity .
2. Community and ecosystem diversity .
3. Species diversity .
4. Diversity among the plant .

6. ____________ is defined as an ecological state of a species being unique to a specific geographic location.

1. Exotic species .
2. Endemic species .
3. Ecosystem .
4. None of the above .

7. 5th June is observed as

1. World forest day .
2. World environment day .
3. World wildlife day .
4. World population day .

8. The Ecological pyramid that is always upright

1. Pyramid of energy .
2. Pyramid of biomass .
3. Pyramid of number .
4. None of these .

9. Most stable ecosystem is

1. Forest .
2. Desert .
3. Ocean .
4. Mountain .

10. Atmospheric ozone layer which protect us from UV-B & C is getting depleted most by addition of

1. Chloro fluorocarbon .
2. Carbon monoxide .
3. Carbon dioxide .
4. Sulphur dioxide .

11. Which of the following are important biotic factors that can affect the structure and organization of biological communities ?

1. Nutrient availability, soil pH, light intensity .
2. Precipitation, wind, temperature .
3. Predation, competition, disease .
4. All of the above .

12. All of the following statements about ecology are correct except:

1. Ecology is the study of the interactions between biotic and abiotic aspects of the environment .
2. Ecology is a discipline that is independent from natural selection and evolutionary history .
3. Ecologists may study populations and communities of organisms .
4. Ecology spans increasingly comprehensive levels of organization, from individuals to ecosystems

13. Detritus food chain starts from

1. Green plants .
2. Grass .
3. Dead organic matter .
4. Phytoplankton .

14. Who coined the term acid rain ?

1. Christ Ralph .
2. Elmer Joseph Clark .
3. Ernest Flower .
4. Robert Angus Smith .

15. The damage caused by acid rain is due to_________ nature of acid rain

1. balancing .
2. protecting .
3. withstanding .
4. corrosive .

16. Acid rain reacts with marble and limestone to form

1. calcium carbonate .
2. calcium hydroxide .
3. calcium sulphate .
4. None of the above .

17. The ecological pyramid always starts with the following at the base

1. Decomposer .
2. Producer .
3. Consumer .
4. None of these .

18. Which of the following is a non-renewable resource ?

1. Coal .
2. Forest .
3. Water .
4. Wildlife .

19. Chipko movement was started to conserve

1. Forests .
2. Grasslands .
3. Deserts .
4. Soil .

20. What is common to the techniques

(i) in vitro fertilization,

(ii) Cryo preservation and

(iii) tissue culture ?

1. All are in situ conservation methods .
2. All are ex situ conservation methods .
3. All require ultra-modern equipment and large space .
4. All are methods of conservation of extinct organisms .

21. The type of diversity including all the different kinds of living things found in a certain habitat is called as

1. Species diversity .
2. Genetic diversity .
3. Ecosystem diversity .
4. Population diversity .

22. Biosphere reserve has following zone except one

1. Core zone .
2. Command zone .
3. Buffer zone .
4. Spherical zone .

23. Conservation of biodiversity outside the natural habitat is called as

1. Ex-situ .
2. In-situ .
3. Conservation .
4. In-vivo .

24. Which out of the following are the causes of soil erosion ?

1. Unrestricted grazing .
2. Over cultivation .
3. Deforestation .
4. All of the above .

25. Red data book contains data of

1. All plant species .
2. All animal species .
3. Threatened species .
4. Economically important species .

26. Which of the following regions has the maximum diversity ?

1. Mangroves .
2. Temperate forest .
3. Taiga .
4. Coral reefs .

27. Which one of the following is not included under in situ conservation ?

1.  Zoo .
2. National Park .
3. Wild life Sanctuary .
4. Biosphere Reserve .

28. Hotspots are regions of high

1. Rareism .
2. Endemism .
3. Diversity .
4. Critically endangered population .

29. A poisonous gas given out of vehicles exhaust is

1. Carbon monoxide .
2. Ethane .
3. Methane .
4. Carbon dioxide .

30. Yellowing of Taj Mahal is an effect of

1. Acid rain .
2. Global warming .
3. Ozone depletion .
4. All of the above .

31. Pollutants that are easily manageable and decomposable in nature are called

1. Biodegradable pollutants .
2. Non-biodegradable pollutants .
3. Renewable pollutants .
4. None of these .

32. BOD stands for

1. Biotic oxidation demand .
2. Biological oxygen demand .
3. Biological oxidation demand .
4. Biochemical oxygen demand .

33. What is Kyoto Protocol ?

1. It is an agreement among countries to take steps for reducing global warming .
2. It is an agreement among countries to take steps for reducing acid rain .
3. It is an agreement among countries to take steps for planting trees to control pollution .
4. It is an agreement among countries to start using nuclear energy .

34. Which of the following is a greenhouse gas ?

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

35. Ozone day is observed on

1. 3rd January .
2. 16th September .
3. 10th November .
4. 26th March .

36. A population is a group of

1. Individual in a family .
2. Individuals in a species .
3. Communities in an ecosystem .
4. Species in a community .

37. Sustainable development means

1. meeting present needs without compromising on future needs .
2. progress of human beings .
3. balance between human needs and the ability of earth to provide the resources .
4. All of the above .

38. Energy flow in an ecosystem is

1. Bidirectional .
2. Unidirectional .
3. Multidirectional .
4.  All rounds .

39. The upright pyramid of numbers is absent in

1. Lake .
2. Pond .
3. Grasslands .
4. Forests .

40. The final stable community in ecological succession is

1. Climax .
2. Pioneer .
3. Sere .
4. Carnivores .

41. Which of the following is not an inexhaustible form of energy ?

1. Water .
2. Wind .
3. Solar .
4. Fossil .

42. The burning of fossil fuels releases a large amount of

1. Nitrogen into air .
2. Sulphur into air .
3. Carbon dioxide into air .
4. Oxygen into air .

43. Which is a list of renewable resources ?

1. Petroleum, geothermal, wind .
2. Biomass, geothermal, hydropower .
3. Natural gas, wind, biomass .
4. Hydropower, solar, wind energy .

44. In ecological succession, the intermediate developmental phase is known as

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

45. Order of basic processes involved in succession is

1. Invasion -> stabilization -> completion and coaction -> reaction -> nudation .
2. Nudation -> stabilization -> completion and coaction -> invasion -> reaction .
3. Invasion -> nudation -> completion and coaction -> reaction -> stabilization .
4. Nudation -> invasion -> completion and coaction -> reaction -> stabilization

46. The organic material of the solid waste will decompose

1. By the flow of water .
2.  By the soil particles .
3. By the action of microorganisms.
4. By oxidation .

47. In which year, the Indian Wildlife (Protection) Act was implemented?

1. 1970 .
2. 1971 .
3. 1972 .
4. 1974 .

48. Which of the following convention aimed to bring conservation of biological diversity, the sustainable use of its components, and the fair and equitable sharing ?

1.  Convention on Biological Diversity (CBD) .
2. Consultative group for International Agriculture Research (CGIAR) .
3. Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) .
4. All of the above .

49. Which of the following was started in 1973 to save the evergreen tropical forest in the Palakkad district of Kerala, India from being flooded by a hydroelectric project?

1. Chipko Movement .
2. Silent Valley Movement .
3. Appiko Movement .
4. Jungle Bachao Andolan .

50. The protection of Human Rights Act in India was enacted in the year

1. 1993 .
2.  1994 .
3. 1995 .
4. 1996

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