The correct answer is (a) Nitrogen.
Nitrogen is not a greenhouse gas because it does not absorb infrared radiation. The other three options, carbon dioxide, methane, and water vapor, are greenhouse gases because they do absorb infrared radiation.
Nitrogen is the most abundant gas in the Earth’s atmosphere, making up about 78% of the air. It is a colorless, odorless, and tasteless gas that is essential for life. Nitrogen is used by plants to produce proteins and other organic compounds. It is also used in fertilizers, explosives, and other industrial products.
Carbon dioxide is a greenhouse gas that is produced when fossil fuels are burned. It is also released into the atmosphere when
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