The Environmental Protection Agency (EPA) targeted 189 chemicals for regulation in the Clean Air Act of 1990. The primary impetus for these regulations:
A.	is evidence that these chemicals impair domesticated animal health.
B.	is evidence that these chemicals have detrimental impact on agriculture.
C.	is evidence that these chemicals impair human health, especially in the form of central nervous system damage and cancer.
D.	is evidence that these chemicals deplete the ozone.
Answer:C
The Environmental Protection Agency (EPA) targeted 189 chemicals for regulation in the Clean Air Act of 1990. The primary impetus for these regulations:
A.	is evidence that these chemicals impair domesticated animal health. B.	is evidence that these chemicals have detrimental impact on agriculture. C.	is evidence that these chemicals impair human health, especially in the form of central nervous system damage and cancer. D.	is evidence that these chemicals deplete the ozone.