The correct answer is (d). Nitrogen is not a greenhouse gas.
Greenhouse gases are gases that trap heat in the atmosphere, causing the Earth’s temperature to rise. The main greenhouse gases are carbon dioxide, methane, nitrous oxide, and ozone.
Carbon dioxide is the most important greenhouse gas. It is produced when fossil fuels are burned, such as coal, oil, and natural gas. It is also released when trees are cut down and when land is cleared for agriculture.
Methane is a greenhouse gas that is produced by the decomposition of organic matter, such as in landfills and from the digestive systems of cows and other ruminant animals.
Nitrous oxide is a greenhouse gas that is produced by the use of fertilizers and from industrial processes.
Ozone is a greenhouse gas that is produced in the stratosphere, the layer of the atmosphere that is about 10 to 50 kilometers above the Earth’s surface. Ozone absorbs ultraviolet radiation from the sun, which helps to protect life on Earth. However, ozone in the lower atmosphere, also known as tropospheric ozone, is a pollutant that can cause respiratory problems and other health issues.
Nitrogen is not a greenhouse gas because it does not absorb infrared radiation. Infrared radiation is the type of radiation that is emitted by the Earth’s surface and that is trapped by greenhouse gases. Nitrogen is a very stable molecule and does not easily react with other molecules. This makes it difficult for nitrogen to absorb infrared radiation.