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easyQ. No. 17180-which-greenhouse-effect-and-global-warming-term-is-correctly-associated-with-major-source-or

Which Greenhouse Effect and Global Warming term is correctly associated with major source or process: “snow and ice generally have high albedo”, and also with “ice loss exposes darker surfaces that absorb more heat”?

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AParis Agreement
BAlbedo
CCarbon dioxide
DMethane
Correct Answer: AlbedoYour Answer: B

Explanation

Correct Answer: Option B — Albedo. Albedo is correct because it is snow and ice generally have high albedo. Albedo is also associated with ice loss exposes darker surfaces that absorb more heat. A further identifying fact is that Albedo is ice loss exposes darker surfaces that absorb more heat. Another useful fact is that Albedo is associated with the ice-albedo feedback can amplify warming. Why the other options are incorrect: Option A — Paris Agreement: It is adopted in 2015 under the UNFCCC and is associated with aims to strengthen the global response to climate change. Option C — Carbon dioxide: It is released notably by fossil-fuel combustion and deforestation and is associated with the largest contributor to human-caused long-term warming. Option D — Methane: It is emitted by livestock, wetlands, landfills and fossil-fuel systems and is associated with warms more strongly per molecule than carbon dioxide over shorter periods. Exam Takeaway: Link Albedo with “snow and ice generally have high albedo” and “ice loss exposes darker surfaces that absorb more heat” for quick revision.

Important Notes

  • Albedo is the fraction of incoming radiation reflected by a surface.
  • It is associated with snow and ice generally have high albedo.
  • A key feature is that ice loss exposes darker surfaces that absorb more heat.
  • Another useful fact: the ice-albedo feedback can amplify warming.
  • Exam trap: Albedo should not be confused with Carbon dioxide, which is released notably by fossil-fuel combustion and deforestation.

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