AP Environmental Scienceeasymcq1 pt
CFCs destroy stratospheric ozone by
A.releasing chlorine atoms that catalytically split O₃
B.absorbing all incoming sunlight
C.combining with water to make acid
D.trapping heat near the ground
Explanation
Core Concept
UV light frees chlorine from CFCs; each atom destroys tens of thousands of ozone molecules in a repeating cycle before leaving the stratosphere.
Correct Answer
Areleasing chlorine atoms that catalytically split O₃
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