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CO(2) content of atmosphere has increase...

`CO_(2)` content of atmosphere has increased in the last 150 years from

A

25 to 35 ppm

B

270 to 340ppm

C

0.027 to 0.34ppm

D

0.2 to 0.3 ppm

Text Solution

Verified by Experts

The correct Answer is:
b
`CO_(2)` conc. Was about 270ppm in 1750and 368 ppm in 2000. The rise has been due to large scale deforestation (for grazing land, cropland or urban estates). Change in land use and large scale combustion of fossil fuels.
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