Which Greenhouse Effect and Global Warming term is correctly associated with climate significance: “acts mainly as a climate feedback rather than the initial human forcing”, and also with “warmer air can hold more moisture”?

Correct Answer: Option C — Water vapour. Water vapour is correct because it is acts mainly as a climate feedback rather than the initial human forcing. Water vapour is also associated with warmer air can hold more moisture. A further identifying fact is that Water vapour is acts mainly as a climate feedback rather than the initial human forcing. Another useful fact is that Water vapour is associated with warmer air can hold more moisture. Why the other options are incorrect: Option A — Tropospheric ozone: It is contributes to warming near Earth's surface and is associated with it should not be confused with protective stratospheric ozone. Option B — Greenhouse effect: It is keeps Earth warm enough for life and is associated with human emissions strengthen the natural effect. Option D — Global warming: It is contributes to sea-level rise and changing climate extremes and is associated with it is one component of broader climate change. Exam Takeaway: Link Water vapour with “acts mainly as a climate feedback rather than the initial human forcing” and “warmer air can hold more moisture” for quick revision.