Multiple Choice
Which of the following characterizes smog?
A) Industrial smog consists of a mixture of sulphur dioxide, suspended droplets of sulphuric acid, and a variety of suspended solid particles.
B) All industrial countries now use modern technologies to prevent industrial smog.
C) In the United States, grey-air smog was less of a problem 30 years ago than it is now.
D) Industrial smog is a problem primarily in the spring.
Correct Answer:
Verified
Correct Answer:
Verified
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