AP Environmental Sciencehardmcq1 pt
The Donora (1948) and London (1952) smog disasters taught that
A.trapped industrial emissions can kill thousands
B.air pollution is harmless
C.only ozone harms health
D.weather plays no role
Explanation
Core Concept
Inversions plus coal smoke produced lethal air, catalyzing the clean-air laws that followed — the disasters behind the Clean Air Act.
Correct Answer
Atrapped industrial emissions can kill thousands
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