ocean dumping:
a)can contaminate beaches.
b)is the most sanitary form of dumping.
c)provides a food source for fish.
d)all of these choices are correct.

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.