Environmental Science and Ecology - Mock Test 10

Question 91

Ecosystem is

A) always open B) always closed C) both open and closed depending upon community D) both open and closed depending upon biomass

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Question 92

Grassland with scattered trees are called

A) rain forest B) evergreen forest C) savanna D) deciduous forest

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Question 93

The resource which regulates the flow of energy in desert ecosystem is the availability of

A) light B) water C) minerals D) heat

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Question 94

Most important determinant of marine ecosystem is

A) rainfall B) geographical location C) depth of distance from the shore D) all the above

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Question 95

Dynamic aspect of an ecosystem is

A) producer and energy flow B) producer and mineral cycles C) consumer and mineral cycles D) energy flow and mineral cycles

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Question 96

The largest ecosystem of the world is

A) forest B) grassland C) great lake D) ocean

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Question 97

The largest vegetational group is known as

A) ecosystem B) association C) consociation D) formation

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Question 98

Which one statement is correct regarding man made ecosystem

A) They are highly efficient B) They are poor in diversity C) They are vulnerable to drought, floods and diseases D) All are correct

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Question 99

A pond is a

A) a biome B) a community of plants and animals C) a natural ecosystem D) none of the above

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Question 100

Both, hydrarch and xerarch successions lead to

A) medium water conditions B) xeric conditions C) highly dry conditions D) excessive wet conditions

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