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Ozone sits near the top of the stratosphere and shields the surface from what?
AInfrared heat from the ground
BRadio waves from deep space
CUltraviolet light from the Sun
DFast dust from passing comets
Answer & Solution
Correct answer: C. Ultraviolet light from the Sun
1. Ozone is a heavy form of oxygen carrying three atoms per molecule.
2. It is a good absorber of ultraviolet light.
3. That absorption keeps much of the Sun's dangerous ultraviolet radiation off the surface.
4. Infrared from the ground is trapped by carbon dioxide and water vapor instead.
_Source: OpenStax Astronomy (CC BY 4.0), section 8.3 Earth’s Atmosphere_
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