U.S History

1) Air pollutants can do all of the following EXPECT:
A) damage the respiratory system
B) enter the bloodstream and harm other parts of the body***
C) cause discoloration to your hair
D) reduce your protection from the sun's radiation
2) Biodegradable waste threatens the health of humans.
A) True
B) False***
3) Some air pollutants are harmful to the ozone layer.
A) True***
B) False

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  1. #2 is correct. #1 is not.

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    posted by Reed

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