What American river caught fire in 1969, prompting multiple pollution control measures?
A. The Fox River
B. The Scioto River
C. The Cuyahoga River
D. The Calumet River
Answer:C
What American river caught fire in 1969, prompting multiple pollution control measures?
A. The Fox River B. The Scioto River C. The Cuyahoga River D. The Calumet River