Which Greenhouse Effect and Global Warming term is correctly associated with important distinction or response: “a sink can weaken if ecosystems are degraded”, and also with “a reservoir that absorbs more carbon than it releases”?

Correct Answer: Option D — Carbon sink. Carbon sink is correct because it is a sink can weaken if ecosystems are degraded. Carbon sink is also associated with a reservoir that absorbs more carbon than it releases. A further identifying fact is that Carbon sink is reduces the fraction of emissions remaining in the atmosphere. Another useful fact is that Carbon sink is associated with a sink can weaken if ecosystems are degraded. Why the other options are incorrect: Option A — Albedo: It is the ice-albedo feedback can amplify warming and is associated with the fraction of incoming radiation reflected by a surface. Option B — Paris Agreement: It is countries submit nationally determined contributions and is associated with an international climate agreement. Option C — Carbon dioxide: It is forests and oceans absorb part of its emissions and is associated with a long-lived greenhouse gas. Exam Takeaway: Link Carbon sink with “a sink can weaken if ecosystems are degraded” and “a reservoir that absorbs more carbon than it releases” for quick revision.