Besides carbondioxide and nitrous oxide, another significant greenhouse gas is:
Correct answer: A. Methane
- A. Methane
- B. Carbon monoxide
- C. Both a and b
- D. None of these
Explanation
Greenhouse gases are those that absorb and emit infrared radiation, trapping heat in the atmosphere. Methane (CH4) is a potent greenhouse gas, along with carbon dioxide, nitrous oxide, and water vapor. Carbon monoxide is not a significant greenhouse gas.
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