Cyclic variations of CO2CO2 concentration in the atmosphere are due to changes in

The correct option is C burning of fossil fuelsThe burning of #160;fossil fuels #160;such as gasoline, coal, oil, natural gas in combustion reactions result ...

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Standard IX

Chemistry

Smog

Cyclic variat...

Question

Cyclic variations of CO2 concentration in the atmosphere are due to changes in

photosynthetic activity

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respiratory activity

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burning of fossil fuels

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action of infra-red rays

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Solution

The correct option is C burning of fossil fuels
The burning of fossil fuels such as gasoline, coal, oil, natural gas in combustion reactions results in the production of carbon dioxide. There are cyclic variations of Carbon dioxide concentration in the atmosphere due to this reason.
So, the correct optionos 'Burning of fossil fuels'.

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