AP Environmental Scienceeasymcq1 pt
The greenhouse effect works because greenhouse gases
A.absorb infrared radiation emitted by Earth's surface
B.block all sunlight from reaching Earth
C.reflect heat from space
D.cool the atmosphere
Explanation
Core Concept
Sunlight passes through and warms the ground; the ground radiates infrared, which GHGs trap and re-emit — the blanket that keeps Earth ~33 °C warmer.
Correct Answer
Aabsorb infrared radiation emitted by Earth's surface
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