Ecology and Ecosystem MCQ Questions and Answers




#1. The Ramsar convention is associated with the conservation of

#2. Eco-Mark is given to the Indian products that are

#3. Which one of the following is the best source of generating electricity in India from the viewpoint of sustainable development ?

#4. Sustainable development is a case of intergenerational sensibility in respect of use of

#5. Chipko movement was basically against

#6. As an ecosystem, wetlands are useful for which of the following ?

#7. The cycling of elements in an ecosystem is called

#8. The transitional zone between two distinct communities is known as

#9. Which one of the following is the most stable ecosystem ?

#10. The orderly sequence of change in the vegetation of an area over time is described as

#11. The minimum area of the land required to completely sustain the life of one person is called his

#12. Biosphere reserves are areas to preserve

#13. Solar radiation plays the most important role in the

#14. The author of Green Development is

#15. Among the biotic components of the ecosystem the producer system is

#16. The concept of ecological niche was first introduced by

#17. Biotic component of the environment does not include

#18. Higher order biotic level includes

#19. Which one of the following is a part of Geological cycle ?

#20. An artificial ecosystem is represented by

#21. All components and individuals in an ecosystem are

#22. The amount of energy as it passes on from one trophic level to other in an ecosystem

#23. What term denotes the organisms getting their food from others ?

#24. The word ‘Ecology’ was coined in 1866 by

#25. Which one of the following energy is most utilized in biomass ?

#26. The term ‘ecosystem’ was enunciated by

#27. Which one of the following is not included under the basic component of the environment ?

#28. Which one of the following is not helpful in maintaining ecological stability?

#29. A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop. The food chain is: Food crop – Rat – Snake – Hawk. In this food chain, the highest concentration of the pesticide would accumulate in which one of the following?

#30. Consider the following statements

#31. What is the primary source of food for marine life?

#32. In Nitrogen Cycle, soil nitrates are transformed into free nitrogen by

#33. The driving force of an ecosystem is

#34. Which one of the following pairs is correctly matched?

#35. As an ecosystem, wetlands are useful for which of the following?

#36. Which of the following statements are true about ecosystem? Select the correct answer from the codes:

#37. Consider the following statements:

#38. Which one of the following statements is not correct?

#39. Which one of the following does not promote stability of the ecosystem?

#40. Consider the following statements:

#41. Which one of the following statements is correct?

#42. Match List-I with List-II and select the correct answer from the codes given below:

#43. Consider the following kinds of organisms and identify the pollinating agent/agents.

#44. Consider the following statements regarding the Millennium Assessment (MA) report 2005 and choose the correct ones:

#45. Consider the following statements:

#46. The ministry of Environment and forest declared India’s first marine eco. sensitive zone in–

#47. Eutrophication in the Chesapeake Bay along the eastern edge of Maryland has resulted in low oxygen levels in the water and alternation of food webs. The cause of this eutrophication appears to be pollution that contains high levels of :

#48. In case of a parasitic food chain, the shape of the pyramid of number is always:

#49. In a forest, deer, racoons, squirrels, and other animals eat and find shelter. A detritus food web occurs as their wastes accumulate on the forest floor. In this detritus web:

#50. In a rural hilly district in Himachal Pradesh, a land developer uses bulldozers to clear all but the largest trees and cleans up a nearby stream, lining the bottom of the stream with pretty rocks and steeping-stones. Planting lawn grasses around the base of the trees, the owner wants to create a pretty park-like setting around his home. We expect that in this cleared yard, there will be:

#51. In the communities found deep in the ocean off the shore of Japan, bacteria have special enzymes that allow them to form organic matter by chemosynthesis. These communities frequently have worms, clams, shrimp and many other organisms clustered together. These communities nestle around hydrothermal vents where super heated water, springs form the bottom of the ocean. In hydrothermal vent communities, we would not expect to find :

#52. Iron ore mining companies are expanding into the deep forests of Orissa where native populations of indigenous people have lived off the land for many centuries. In order to resolve the growing conflicts between the natives and the mining companies, they have been urged by the Government officials to bring together all of the interested parties. The mining company operations in the forest will likely lead to the loss of ecosystem services, such as:

#53. Neena gets a new baby turtle from a friend, and is told to feed it worms. For the first few months, the turtle seemed to grow fine. But as time passed, the turtle’s shell appeared soft and fragile. Someone suggested that the turtle might not be getting enough calcium in its diet. If this is true for this turtle, dietary calcium is :

#54. Walking along a large city park on a hot summer day, you look for a cool resting place and sit down on a large rock under a tree, at the quiet edge of a stream. You have searched for and found an example of a :

#55. Which of following statement is true about the ecotone?

#56. Consider following statement about the estuary

#57. Which of the following statement is incorrect about the Biosphere?

#58. What percent of area in the plain should be under forest?

#59. Upper part of sea/aquatic ecosystem contains

#60. Competition for light, nutrients and space is most severe between

#61. Pick up the correct food chain

#62. The term M-STRIPES’ is sometimes seen in the news in the context of

#63. Recently there was a proposal to translocate some of the lions from their natural habitat in Gujarat to which one of the following sites ?

#64. From the ecological point of view, which one of the following assumes importance in being a good link between the Eastern Ghats and the Western Ghats?

#65. Consider the following statements in respect of Trade Related Analysis of Fauna and Flora in Commerce (TRAFFIC):


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