The most important source of smog in most cities is
A) automobiles.
B) wood burning.
C) hydroelectric dams.
D) nuclear power plants.

Name: The most important source of smog in most cities is A) automobiles. B) wood burning. C) hydroelectric dams. D) nuclear power plants.
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Question

Quizplus · Accepted Answer

Automobiles are the most significant source of smog in most cities due to the emissions from their exhaust systems. Wood burning, hydroelectric dams, and nuclear power plants do not release the same level of pollutants into the air.

The Most Important Source of Smog in Most Cities Is