Which Greenhouse Effect and Global Warming term is correctly associated with major source or process: “strongly linked to agricultural soils and nitrogen fertilisers”, and also with “also contributes to stratospheric ozone depletion”?

Correct Answer: Option B — Nitrous oxide. Nitrous oxide is correct because it is strongly linked to agricultural soils and nitrogen fertilisers. Nitrous oxide is also associated with also contributes to stratospheric ozone depletion. A further identifying fact is that Nitrous oxide is also contributes to stratospheric ozone depletion. Another useful fact is that Nitrous oxide is associated with it should not be confused with nitrogen dioxide. Why the other options are incorrect: Option A — Water vapour: It is enters the atmosphere mainly through evaporation and is associated with acts mainly as a climate feedback rather than the initial human forcing. Option C — Tropospheric ozone: It is formed by sunlight-driven reactions involving precursor pollutants and is associated with contributes to warming near Earth's surface. Option D — Greenhouse effect: It is occurs when gases absorb and re-emit outgoing infrared radiation and is associated with keeps Earth warm enough for life. Exam Takeaway: Link Nitrous oxide with “strongly linked to agricultural soils and nitrogen fertilisers” and “also contributes to stratospheric ozone depletion” for quick revision.