Apentix/AP Environmental Science/Unit 9: Global Change/Question

AP Environmental Sciencemediummcq1 pt

Methane's global warming potential is much higher than CO₂'s because methane

A.traps far more heat per molecule, though it decays faster

B.lasts longer in the atmosphere

C.is more abundant than CO₂

D.blocks incoming sunlight

Explanation

Core Concept

Methane absorbs infrared ~25–30 times more strongly per molecule over a century, but it breaks down in about a decade, unlike CO₂'s centuries.

Correct Answer

Atraps far more heat per molecule, though it decays faster

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