What effect does increasing the amount of enzyme have on an enzyme reaction?

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

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.

actually the answer is c