. The percentage of carbon dioxide in air is
(a) 0.01%.
(b) 0.02%.
(c) 0.03%.
(d) 0.04%.
Best Answer
(c)
Explanation- Air contains 0.03% carbon dioxide.
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(a) 0.01%.
(b) 0.02%.
(c) 0.03%.
(d) 0.04%.
(c)
Explanation- Air contains 0.03% carbon dioxide.