Agriculture - Mock Test 173

Question 1721

Prairies and steppes are parts of the natural regions called?

A) Temperate grasslands B) Tropical grasslands C) Prairie grasslands D) Steppes grasslands

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Question 1722

The earth could have sustained more population if all the people would have been?

A) Pure vegetarians B) Milk drinker and vegetarian C) Non-vegetarians D) Dependent upon milk, egg and vegetarian habit

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Question 1723

Ecosystem may be defined as?

A) Group of plants, which act as the energy suppliers B) Group of organisms which form population C) Functional unit for ecological studies D) None of these

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Question 1724

In an aquatic environment, microscopic animals and plants are collectively known?

A) Commensals B) Herbivores C) Fauna and flora D) Planktons

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Question 1725

The term biosphere is used for the zone of earth where life exists?

A) On the lithosphere surface B) In the hydrosphere C) In the lithosphere, hydrosphere and atmosphere D) In the lithosphere and hydrosphere

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Question 1726

Pond is an example of?

A) Artificial ecosystem B) Forest ecosystem C) Natural ecosystem D) Grassland ecosystem

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Question 1727

An ecosystem is?

A) A community of organisms interacting with one another B) The abiotic component of an area C) The part of the earth and its atmosphere where living organisms exist D) A community of organisms together with the environment in which they live

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Question 1728

A habitat of long severe winters and growing season limited to a few months of summer constitutes?

A) Savana ecosystem B) Taiga ecosystem C) Tundra ecosystem D) None of the above

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Question 1729

Each human couple should produce only two children which help in?

A) Checking pollution B) Fertility of soil C) Stabilizing the ecosystem D) Improving food-web

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Question 1730

Ecosystem is?

A) Both open and closed unit depending upon the biomass present B) Closed unit C) Open unit D) Both open and closed unit depending upon community type

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