Primary pollutants are
A. chemicals or substances emitted directly into the air.
B. those formed from reactions with other pollutants in the atmosphere.
C. found only in stratospheric ozone.
D. also known as natural pollutants.
E. found only in fossil fuels.
Answer: A
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Outdoor air pollutants
A. can travel via prevailing winds. B. are a low risk human health problem. C. mostly occur in rural areas. D. are increasing in developed countries. E. are not regulated in the United States.
The International Basel Convention bans the transfer of hazardous waste from developed to developing countries. The United States
a. is the only industrialized nation that has not ratified this convention b. has enthusiastically embraced this convention c. is the author of this convention d. has revised and improved this convention e. none of these answers
Which image best illustrates the source of most magma from active volcanoes?
Scientists predict that air quality will continue to improve even without emission regulations
Indicate whether the statement is true or false