Question 11 — How is heat lost from - Questions at the end of the chapter - Chapter 13 - Earth as a System: Energy, Matter, and Life (Exploration)

Last updated at July 3, 2026 by

Question 11
How is heat lost from the surface of the Earth? What is its significance?
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  • The Earth’s surface absorbs sunlight and re-radiates it as infrared heat back towards space.
  • Greenhouse gases trap part of this outgoing heat — keeping the Earth warm enough for life; the balance between incoming and outgoing heat sets the planet’s temperature.
Losing Heat The surface re-radiates infrared Greenhouse gases trap some of it This keeps the Earth warm enough
Back to: 13.1.3 Role of the atmosphere
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