Which Greenhouse Effect and Global Warming term is correctly associated with important distinction or response: “it is the main component of natural gas”, and also with “a potent short-lived greenhouse gas”?

Correct Answer: Option D — Methane. Methane is correct because it is it is the main component of natural gas. Methane is also associated with a potent short-lived greenhouse gas. A further identifying fact is that Methane is warms more strongly per molecule than carbon dioxide over shorter periods. Another useful fact is that Methane is associated with it is the main component of natural gas. Why the other options are incorrect: Option A — Nitrous oxide: It is it should not be confused with nitrogen dioxide and is associated with a long-lived greenhouse gas. Option B — Water vapour: It is warmer air can hold more moisture and is associated with the most abundant natural greenhouse gas. Option C — Tropospheric ozone: It is it should not be confused with protective stratospheric ozone and is associated with a secondary air pollutant and greenhouse gas. Exam Takeaway: Link Methane with “it is the main component of natural gas” and “a potent short-lived greenhouse gas” for quick revision.