Which one of the following statements about air pollution is false?
a. the united states has created restrictions to reduce air pollution.
b. thirty-percent of pollution in the untied states did not originate in the united states.
c. air pollution is only a problem in the developing world.
d. air pollution can lead to poor health.
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Which one of the following statements about air pollution is false?
a. the united states has...
a. the united states has...
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