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CHEMISTRY

Chemistry
Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between

10 and 20 km
20 and 50 km
5 and 10 km
50 and 100 km

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Chemistry
Which one of the following is not a ‘green house gas’ ?

Chlorofluorocarbons
Methane
Carbon dioxide
Nitrogen

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Chemistry
Green house effect is accelerated by

Increased transportation activity
All of these
Deforestation
Rapid industrialization

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Chemistry
Smoke is formed due to

Solid dispersed in gas
Solid dispresed in liquid
Gas dispresed in solid
Gas dispersed in gas

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Chemistry
The increasing abundance of green house gases in atmosphere has led to the following effect except

Global warming
Depletion of ozone layer in the stratosphere
Carbon dioxide ferilization effect
Oxygen fertilization effect

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