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NEET Practice Questions (MCQs) with Answers & Solutions

Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology

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Green house effect was first described by ...

A. Yues Chauvin B. Einstein C. Fourier D. Newton

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A substance which may alter environmental constituents or cause pollution is called ...

A. Radiator B. Pollutant C. Reducer D. Decomposer

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The percentage of total amount of CO present in atmosphere, due to forest fires is

A. 63% B. 17% C. 9.50% D. 7.40%

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The homosphere constituents how much percent of the total atmosphere

A. 80% B. 86% C. 90% D. 99.99%

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Acid rain is due to the increase in the concentration of which of the following in the atmoshpere ?

$O_3$ + $NO_2 $

$ CO_2$ and $CO $

$ SO_3$ and $CO $

$ SO_2$ and $NO_2 $

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Which of the following is a solid pollutant ...

A. Carbon B. Nitric oxide C. Sulphur dioxide D. Carbon monoxide

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The Green house effect is caused by ...

A. Methane only B. $ CO_2 and SO_2 $ C. $ CO_2,SO_2 and NO_2 $ D. $ CO_2, CFC CH_4 and NO_2 $ gases

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The brown haze of photochemical Smog is largely attributable to ...

A. NO B. $ NO_2 $ C. $ CH_3 COOONO_2 $ D. $ CH_2=CH-CH=O $

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Ozone in the stratosphere is depleted by

A. $ CF_2 Cl_2 $ B. $ C_6F_{16} $ C. $ C_6H_6CL_6 $ D. $ C_6F_6 $

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The basic component of Smog is

A. PAN B. PBN C. Ozone D. all of these

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