MCQs: Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to:
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MCQs: Which of the following is biodegradable?
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MCQs: If all the plants of the World die, all the animals will also die due to shortage of:
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MCQs: The most dangerous consequence of excessive deforestation is:
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MCQs: Which amongst the following pairs of organisms represents predator - prey relationship?
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MCQs: The largest source of pollution in the world is:
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MCQs: "Green Hose Effect" means:
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MCQs: The maximum fixation of solar energy is done by:
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MCQs: Biodegradable wastes can usually be converted into useful substances with the help of:
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MCQs: Which of the following gases is not found free in air?
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MCQs: Nitrogen fixation is done by:
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MCQs: A microscopic organism playing a vital role in nitrogen cycle is:
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MCQs: Which of the following fuels causes minimum environmental pollution?
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MCQs: The crop most susceptible to frost is:
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MCQs: The fain factor which determines the balance of nature is:
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MCQs: Which of the following is usually not an air pollutant?
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MCQs: The maximum biological magnification of DDT through food web is seen in:
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MCQs: Organisms at the base of the food chain are:
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MCQs: Grenada is situated in the
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MCQs: The North Atlantic Sea route is regarded as an important internationsl trade route because
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