Multiple Choice
Nitrogen dioxide (NO₂) is
A) a gas,reddish-brown in colour that causes choking and is damaging to respiratory tracts.
B) yet to be of consequence in North America.
C) produced only after photochemical reactions.
D) more of a concern in nonurban areas than urban.
E) destroys ozone in the stratosphere.
Correct Answer:
Verified
Correct Answer:
Verified
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