MCQOPTIONS
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MCQOPTIONS
This section includes 107 Mcqs, each offering curated multiple-choice questions to sharpen your Environment & Ecology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Solar radiation plays the most important role in the |
| A. | Carbon cycle |
| B. | Oxygen cycle |
| C. | Water cycle |
| D. | Nitrogen cycle |
| Answer» D. Nitrogen cycle | |
| 2. |
The author of Green Development is |
| A. | M.J.Bradshaw |
| B. | M. Nicolson |
| C. | R.H. Whittaker |
| D. | W.M. Adams |
| Answer» E. | |
| 3. |
Endangered species are listed in |
| A. | Dead Stock Book |
| B. | Red Data Book |
| C. | Live Stock Book |
| D. | None of these |
| Answer» C. Live Stock Book | |
| 4. |
The cycling of elements in an ecosystem is called |
| A. | chemical cycles |
| B. | biogeochemical cycles |
| C. | geological cycles |
| D. | geochemical cycles |
| Answer» C. geological cycles | |
| 5. |
The transitional zone between two distinct communities is known as |
| A. | Ecotype |
| B. | Ecade |
| C. | Ecosphere |
| D. | Ecotone |
| Answer» E. | |
| 6. |
Which one of the following is the most stable ecosystem? |
| A. | Desert |
| B. | Mountain |
| C. | Ocean |
| D. | Forest |
| Answer» D. Forest | |
| 7. |
The greenhouse effect is mostly caused by |
| A. | Carbon dioxide in the atmosphere |
| B. | Infra-red radiation |
| C. | Moisture in the atmosphere |
| D. | Ozone layer |
| Answer» B. Infra-red radiation | |
| 8. |
World Environment Day is observed on |
| A. | November 19 |
| B. | November 14 |
| C. | October 2 |
| D. | June 5 |
| Answer» E. | |
| 9. |
The concept of ecological niche was first introduced by |
| A. | C.C. Park |
| B. | E.P. Odum |
| C. | J. Grinnell |
| D. | G.E. Hutchinson |
| Answer» D. G.E. Hutchinson | |
| 10. |
Which one of the following is the best source of generating electricity in India from the viewpoint of sustainable development? |
| A. | Coal |
| B. | Mineral oil and gas |
| C. | Hydro electricity |
| D. | Atomic energy |
| Answer» D. Atomic energy | |
| 11. |
Which of the following is not a greenhouse gas? |
| A. | Carbon dioxide |
| B. | Methane |
| C. | Nitrous oxide |
| D. | Nitrogen |
| Answer» E. | |
| 12. |
As an ecosystem, wetlands are useful for which of the following? |
| A. | For nutrient recovery and recycling |
| B. | For releasing heavy metals through absorption by plants. |
| C. | In reducing siltation of rivers by retaining sediments |
| D. | All the above |
| Answer» E. | |
| 13. |
Mangrove forests in Asia are largely concentrated in |
| A. | India |
| B. | Malaysia |
| C. | Indonesia |
| D. | Philippines |
| Answer» D. Philippines | |
| 14. |
Which one of the following ecosystems is known as the 'Land of Big Games'? |
| A. | Selvas |
| B. | Savannah |
| C. | Prairie |
| D. | Taiga |
| Answer» C. Prairie | |
| 15. |
Higher order biotic level includes |
| A. | populations |
| B. | cells |
| C. | genes |
| D. | tissues |
| Answer» B. cells | |
| 16. |
Which one of the following is a part of Geological cycle ? |
| A. | Carbon cycle |
| B. | Hydrogen cycle |
| C. | Hydrological cycle |
| D. | Nitrogen cycle |
| Answer» D. Nitrogen cycle | |
| 17. |
Which one of the following is designated as the "lungs of the world" ? |
| A. | Mangrove forests |
| B. | Mid-latitude mixed forests |
| C. | Taiga forests |
| D. | Equatorial evergreen forests |
| Answer» E. | |
| 18. |
An artificial ecosystem is represented by |
| A. | Agriculture land |
| B. | Pisciculture tank |
| C. | Zoo |
| D. | Aquarium |
| Answer» E. | |
| 19. |
All components and individuals in an ecosystem are |
| A. | individualistic |
| B. | independent |
| C. | interdependent |
| D. | dispensable |
| Answer» D. dispensable | |
| 20. |
The 'word Ecology' was coined in 1866 by |
| A. | Charles Darwin |
| B. | Robert Whittaker |
| C. | Arthur Tansley |
| D. | Ernst Haeckel |
| Answer» E. | |
| 21. |
The concept of carbon credit originated from which one of the following ? |
| A. | Kyoto protocol |
| B. | Earth summit |
| C. | Doha round |
| D. | Montreal protocol |
| Answer» B. Earth summit | |
| 22. |
Vermicompost is a/an |
| A. | inorganic fertilizer |
| B. | tixic substance |
| C. | organic biofertilizer |
| D. | synthesis fertilizer |
| Answer» D. synthesis fertilizer | |
| 23. |
Environmental Kuznets curve |
| A. | a semi-circle curve suggesting increase in per-capita income increases the pollution |
| B. | a U-shaped curve suggesting the level of development and carbon emission |
| C. | suggest a U-shaped relationship between the carbon emission and Ozone layer depletion |
| D. | suggest a bell-shaped relationship between the concentration of certain pollution emission and per-capita real GDP |
| Answer» E. | |
| 24. |
Consider the following statements1. The Forest Survey of India was established in 19812. The Forest Survey of India was a successor to "Pre-Investment Survey of Forest Resources" (PISFR), a project initiated in 1965 by Government of India and sponsored by FAO and UNDP.3. The Forest Survey of India prepare vegetation maps after every five yearsWhich of the statements given above is/are correct? |
| A. | 1,2 and 3 |
| B. | 1 and 2 |
| C. | Only 1 |
| D. | Only 3 |
| Answer» C. Only 1 | |
| 25. |
'Rally for Valley' programme in India was organised to highlight the problem of |
| A. | environmental degradation |
| B. | biodiversity |
| C. | resettlement of displaced people |
| D. | loss of agricultural land |
| Answer» B. biodiversity | |
| 26. |
Which of the following components of ecosystem acts as intermediatory between biotic and abiotic components? |
| A. | Producer |
| B. | Consumer |
| C. | Decomposer |
| D. | Habitat |
| Answer» B. Consumer | |
| 27. |
Which one of the following is not helpful in maintaining ecological stability ? |
| A. | Ecosystem complexity |
| B. | Ecosystem diversity |
| C. | Ecosystem uniformity |
| D. | Homeostatic mechanism |
| Answer» D. Homeostatic mechanism | |
| 28. |
Consider the following statements1. In ecology, an ecosystem is a naturally occurring assemblage of organism (plant, animal and other living organism - also referred to as a biotic community or biocoenosis) living together with their environment (or biotope), function as a unit of sorts.2. The term "ecosystem" first coined by Arthur Tansely.Which of the statements given above is/are correct ? |
| A. | Only 1 |
| B. | Only 2 |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 29. |
The driving force of an ecosystem is |
| A. | biomass |
| B. | producer |
| C. | carbohydrate in producers |
| D. | solar energy |
| Answer» E. | |
| 30. |
As an ecosystem, wetlands are useful for which of the following ? |
| A. | For nutreint recovery and cycling |
| B. | For releasing heavy metals through absorption by plants |
| C. | In reducing saltation of rivers by retaining sediments |
| D. | All of the above |
| Answer» D. All of the above | |
| 31. |
Which one of the following energyis most utilized in biomass ? |
| A. | Atomic energy |
| B. | Solar energy |
| C. | Geothermal energy |
| D. | Tidal energy |
| Answer» C. Geothermal energy | |
| 32. |
The National Environmental Research Institute is located at |
| A. | Dehradun |
| B. | Jaipur |
| C. | Nagpur |
| D. | New Delhi |
| Answer» D. New Delhi | |
| 33. |
Rajiv Gandhi Environment Award is given for outstanding contribution to |
| A. | Afforestation and conservation of wastelands |
| B. | Clean technology and development |
| C. | Wild life conservation |
| D. | Hindi books on environment |
| Answer» C. Wild life conservation | |
| 34. |
The term 'ecosystem' was enunciated by |
| A. | C.C. Park |
| B. | G. Mendal |
| C. | A.G. Tansley |
| D. | E.P. Odum |
| Answer» D. E.P. Odum | |
| 35. |
Which among the following statement about biofertilizers are correct?1. Azotobacter is one of the nitrogen fixing bacteria used as a biofertilizer.2. They have to be applied to the leaves of the plant only.3. They alter the chemical composition of the soil.4. They can be used along with organic fertilizers.Select the correct answer using the code given below |
| A. | 1 and 4 |
| B. | 1, 2 and 4 |
| C. | 2 and 3 |
| D. | 1, 2, 3 and 4 |
| Answer» B. 1, 2 and 4 | |
| 36. |
Urbanisation and Industrialisation are detrimental to |
| A. | Sustainable development |
| B. | Environment and Ecology |
| C. | Preservation of biodiversity |
| D. | All of the above |
| Answer» E. | |
| 37. |
Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason / reasons is this attributable ?1. The anaerobic conditions associated with rice cultivation cause the emission of methane.2. When nitrogen based fertilizers are used, nitrous oxide is emitted from the cultivated soil.Which of the statements given above is / are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» D. Neither 1 nor 2 | |
| 38. |
Match List - I (Major Biome) with List - II (Physical Characteristic) and the correct answer using the code given below the listsList - IList - IIF. The northernmost of the temations (i.e., continuous belt across North America and Northern Eurasia)1.FOristically poorG. Arctic Tundra Vegeration 2.Boreal ForestH. Marine3.Pelagic divisionJ. The terrestrial biomes of the tropics4.Savanna woodland5. Soviet Steppe and North American Prairie Code : FGHJA.2431B.2134C.4352D.4132 |
| A. | A. |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» C. C. | |
| 39. |
Which of the following statements about Radioactive pollution are correct ?1. It causes hereditary change in the animals.2. It causes disbalance among different minerals in the soil.3. It hinders blood circulation.4. It causes carcinogenesis.Select the correct answer from the codes given belowCode |
| A. | 1 and 2 |
| B. | 1 and 4 |
| C. | 1, 3 and 4 |
| D. | 2, 3 and 4 |
| Answer» D. 2, 3 and 4 | |
| 40. |
In the context of CO2 emission and Global Warming, what is the name of a market driven device under the UNFCC that allows developing countries to get funds/ incentives from the developed countries to adopt, better technologies that reduce greenhouse gas emissions ? |
| A. | Carbon Footpring |
| B. | Carbon Credit Rating |
| C. | Clean Development Mechainsm |
| D. | Emission Reduction Norm |
| Answer» D. Emission Reduction Norm | |
| 41. |
Match List - I (Environmental Degradation) with List - II (Constituent Causing Degradation) and select the correct answer using the code given below the listsList - IList - IIF. Acid rain1.NitrogenG. Automobile smoke2.Cabon dioxideH. Ozone Depletion3.Nitrogen oxideJ. Global warming4.Oxide of sulphur5. Clorofluoro-carbonCode : FGHJA.4253B.5312C.4352D.5132 |
| A. | A. |
| B. | B. |
| C. | C. |
| D. | D. |
| Answer» D. D. | |
| 42. |
Consider the following which can be found in the ambient atmosphere1. Soot2. Sulphur hexagluoride 3. Water vapourWhich of the above contribute to the warming up of the atmosphere ? |
| A. | 1 and 2 only |
| B. | 3 only |
| C. | 2 and 3 only |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 43. |
With reference to a fresh water lake, consider the following characteristics1. Richness in nutrients2. Rapid turnover of phytoplankton3. Depletion of dissolved oxygenWhich of the above is / are observed in a lake after its eutrophication ? |
| A. | 1 only |
| B. | 1 and 2 |
| C. | 3 only |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 44. |
Assertion (A) : In oligotrophic lacks, high concentration of nutrients result in algae blooms.Reason (R) : A higher concentration of nutrients result in higher organic productivity. |
| A. | Both (A) and (R) are and (R) is the correct explanation of (A) |
| B. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
| C. | (A) is true but (R) is false |
| D. | (A) is false but (R) is true |
| Answer» B. Both (A) and (R) are true but (R) is not the correct explanation of (A) | |
| 45. |
Consider the following pairs of projects and related environmental problems 1. River Valley project : Water body induced 2. Mining project : Ground water and surface water pollution3. thermal power project : Degradation of landWhich of the above pair (s) is / are correctly matched ? |
| A. | 1, 2 and 3 |
| B. | 2 and 3 |
| C. | 1 and 2 |
| D. | 1 alone |
| Answer» B. 2 and 3 | |
| 46. |
Consider the following statements1. Montreal Protocol in the year 1987 called for the complete cut in the use of Chloro-fluoro carbons (CFCs) by the year 2000.2. India was a signatory to the Montreal Protocol in the year 1987.Which of the statement (s) given above is / are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» E. | |
| 47. |
Consider the following statements regarding human geography1. It is the synthetic relationship between human societies and earth surface2. It describes all those parts of geography which are not solely concerned either with physical environment or with cartography 3. It is currently dominated by numerous approachesWhich of the above statements are correct ? |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 2 and 3 |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 48. |
The following forms of relationship exist between man and his environment according to the development of geographical thought 1. Environmental determinism2. Possibilism3. Neo-determinismThe correct sequence of the development of these forms of relationship is |
| A. | 2,1,3 |
| B. | 3,1,2 |
| C. | 1,3,2 |
| D. | 1,2,3 |
| Answer» E. | |
| 49. |
Directions : The following items consist of two statements, one labeled as the Assertion (A) and the other as Reason (R). You are to examine these statements carefully and select given belowStatement (A) : The conifers are limited in specis.Reason (R) : The confiers are in fact, the dominant trees of the mountainous district of temperate countries. Code |
| A. | Both (A) and (R) are individually true and (R) is the correct explanation of (A) |
| B. | Both (A) and (R) are individually true but (R) is not the correct explanation of (A) |
| C. | (A) is true but (R) is false |
| D. | (A) is false but (R) is true |
| Answer» B. Both (A) and (R) are individually true but (R) is not the correct explanation of (A) | |
| 50. |
Consider the following statements1. Biodiversity hotspots are located only in tropical regions.2. India has four bio-diversity hotspot i.e., Eastern Himalayas, Western Himalayas, Western Ghats and Andaman and Nicobar Islands.Which of the statements given above is / are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» E. | |