Home » mcq » chemistry » Besides CO2, the other green house gas is A. CH4 B. N2 C. Ar D. O2
CH4
N2
Ar
O2
Answer is Wrong!
Answer is Right!
The correct answer is A. CH4.
Methane (CH4) is a greenhouse gas that is second only to carbon dioxide (CO2) in
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terms of its contribution to global warming. Methane is produced by natural processes such as decomposition and volcanic eruptions, as well as by human activities such as agriculture, waste management, and fossil fuel production.
Nitrogen (N2) and argon (Ar) are not greenhouse gases. They do not absorb or emit infrared radiation, and therefore do not contribute to global warming. Oxygen (O2) is a greenhouse gas, but it is a minor contributor to global warming.
Here is a brief explanation of each option:
- Option A: Methane (CH4) is a greenhouse gas that is second only to carbon dioxide (CO2) in terms of its contribution to global warming. Methane is produced by natural processes such as decomposition and volcanic eruptions, as well as by human activities such as agriculture, waste management, and fossil fuel production.
- Option B: Nitrogen (N2) is the most abundant gas in the Earth’s atmosphere. It is a non-greenhouse gas, meaning that it does not absorb or emit infrared radiation.
- Option C: Argon (Ar) is the third most abundant gas in the Earth’s atmosphere. It is a non-greenhouse gas, meaning that it does not absorb or emit infrared radiation.
- Option D: Oxygen (O2) is a greenhouse gas, but it is a minor contributor to global warming. Oxygen absorbs infrared radiation, but it does so at a much lower rate than carbon dioxide.