Environmental Studies Multiple Choice Questions and Answers for Practice

16. The layer of atmosphere containing much of ozone gas is

1. Thermosphere
2. Stratosphere
3. Troposphere
4. Troposphere

17. The layer which provides ideal site for flying of jet planes is

1. Thermosphere
2. Stratosphere
3. Mesosphere
4. Troposphere

18. The layers of atmosphere consists of

1. Troposphere, Stratosphere, Mesosphere and Temperature
2. Hydrosphere and biosphere
3. Lithosphere and Hydrosphere
4. Biosphere and Hydrosphere

19. The loss of water from plants and tree leaves is called

1. Precipitation
2. Respiration
3. Evaporation
4. Transpiration

20. The main components of photochemical smog is

1. water vapour
2. sulphur dioxide
3. oxides of nitrogen
4. all of the above

21. The most important organisms of an ecosystem are

1. Herbivores
2. Producers
3. Carnivores
4. Protozon

22. The subsurface sources of water is

1. River
2. Dug well
3. Stream
4. Ocean

23. The sudden increase in the population of the species is

1. population growth
2. population explosion
3. over population
4. all above

24. The TAJ MAHAL at AGRA may be damaged by

1. sulphur dioxide
2. chlorine
3. hydrogen
4. oxygen

25. The term Environment is derived from an old French word enviro means

1. Outside
2. Surroundings
3. Inside
4. Biotic community

26. The three major living components of an ecosystem are

1. Producers, consumers and Decomposers
2. Producers, Autotrophs and Decomposers
3. Heterotrophs, Consumers and Reducers
4. Detritivores, Consumers and Phototrophs

27. Which of the following is not a method of water conservation

1. rain water harvesting
2. ground water extraction
3. improving irrigation efficiency
4. avoiding water wastage

28. Which of the following statement about the forest is not correct

1. Forest reduces soil erosion
2. Provides recreational opportunities
3. Provides economic development
4. None of the above

29. Word oikos means.............and logos means..............

1. Houses and study of
2. Study and houses
3. Only houses
4. Study of people

30. Zone consisting air, water and soil is known as

1. Hydrosphere
2. Atmosphere
3. Lithosphere
4. Biosphere