What is a reason for peer review? Answer "To maintain scientific standards"

It helps ensure that papers published in scientific journals answer meaningful research questions and draw accurate conclusions based on professionally executed experimentation. ... The major advantage of a peer review process is that peer-reviewed articles provide a trusted form of scientific communication

Explanation:

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.