1. air pollutants can do all of the following except:
a . damage the respiratory system
...
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1. air pollutants can do all of the following except:
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
true or false:
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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