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Biology
6. Natural Resources
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Q7 of 287 Page 350

Major source of air pollution is

Burning of fossil fuels like coal, natural gas and oil for fulfilling various needs is a major source of air pollution. The gases that are released on the burning of these compounds results in air pollution.

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Air is

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Greenhouse is related to

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Organisms such as lichens are very sensitive to the level of ………….in the atmosphere.

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Major source of formation of soil is

Questions · 287
6. Natural Resources
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