What percentage of carbon dioxide does air contain?
Correct answer: B. 0.03-0.04%
- A. 0.02-0.03%
- B. 0.03-0.04%
- C. 0.04-0.05%
- D. 0.05-0.06%
Explanation
The Earth's atmosphere contains about 0.03-0.04 % carbon dioxide.Hence, B is the correct option.
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