Environmentalhard · Past Paper

Which 'Window' in the electromagnetic spectrum allows most of Earth's heat to escape back into space?

AThe Visible Window
BThe Infrared Window (8-13 micrometers)
CThe UV Window
DThe Radio Window

✓ Correct Answer: BThe Infrared Window (8-13 micrometers)

The atmospheric window is a range of wavelengths where the atmosphere is transparent to infrared radiation, allowing heat to escape directly into space.

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