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All Physics Chemistry Botany Zoology

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Greenhouse effect:

Find the wrong one out

A. The name is derived from a green house which does not allow the heat to escape B. It's a naturally occurring phenomenon C. Responsible for maintaining average temperature 15â„ƒ D. Greenhouse gases cannot absorb long wave or infrared radiation

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Explanation

Page number 280-281

16.6 Green House Effect And Global Warming

Environmental Issues

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If Green house effect had not there on Earth, the average temperature would be

A. -18â„ƒ B. 10â„ƒ C. 0â„ƒ D. -2â„ƒ

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Explanation

Page number 281

16.6 Green House Effect And Global Warming

Environmental Issues

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Greenhouse gases

A. Absorb long wave or infrared radiation from the Earth B. Emit the long wave or infrared radiation towards the Earth C. Can neither absorb nor emit D. Both A and B

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Explanation

Page number 281

16.6 Green House Effect And Global Warming

Environmental Issues

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What does El Nino effect mean?

A. Rise in temperature due to global warming going to result in odd climatic changes B. Rise in use of chemical fertiliser going to cause metabolic disorder C. Rise in use of CFCs going to cause ozone depletion D. Rise in use of Plastic going to destroy sea animals

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Explanation

Page number 282

16.6 Green House Effect And Global Warming

Environmental Issues

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Relative contribution of various greenhouse gases to total global warming will not be

A. Carbon dioxide-60% B. Methane-20% C. CFCs-14% D. N2O-12%

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Explanation

Page number 281

16.6 Green House Effect And Global Warming

Environmental Issues

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Ozone

A. Ozone hole is the area above Antarctica B. Ozone layer is the thinnest above Antartica C. Ozone thickness is measured in Dobson unit D. All of these

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Explanation

Page number 282

16.7 Ozone Depletion In The Stratosphere

Environmental Issues

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Ozone hole over Antarctica develops each year between

A. Early October and Late December B. Late August and Early October C. Early August and Late October D. Late October and Early December

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Explanation

Page number 282

16.7 Ozone Depletion In The Stratosphere

Environmental Issues

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Bad Ozone

A. Formed in lower atmosphere B. Formed in Troposphere C. Harms plants and animals but is not lethal D. All of these

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Explanation

Page number 282

16.7 Ozone Depletion In The Stratosphere

Environmental Issues

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Good ozone is

A. Found in the upper strata of the atmosphere B. Found in Stratosphere C. Acts as a shield to UV light D. All of these

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Explanation

Page number 282

16.7 Ozone Depletion In The Stratosphere

Environmental Issues

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The thickness of ozone is measured in

A. Dobson units B. Decibel C. Centi Morgan D. Centi meter

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Explanation

Page number 282

16.7 Ozone Depletion In The Stratosphere

Environmental Issues

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