The Carbon Dioxide in the atmosphere, by volume, is----? 0.039% 3.9% 13%

The Carbon Dioxide in the atmosphere, by volume, is----?

0.039%

3.9%

13%
by

1 Answer

Answer :

3.9%
by

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What is likely to happen if carbon dioxide levels in the atmosphere increase?

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The present level of carbon-dioxide in atmosphere is : (A)190 ppm (B) 295 – 300 ppm (C) 420 – 460 ppm (D) 490 ppm

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