Multiple choice

What is the percentage composition of carbon dioxide in the atmosphere?

  1. 78.08%

  2. 20.95%

  3. 0.0360%

  4. 0.0018%
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C Correct answer
Explanation

It is the percentage of carbon dioxide gas. The raising level of carbon dioxide and methane, in the atmosphere is the major cause for global warming. It is because of the increasing greenhouse gases, that raises the concern of melting of glaciers and elevation, in the global temperature.

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