Astudent completing an expeirment finds that her data do not match her hypothisis

yes, because even though a theory has a  lot of evidence to support it, it is not always true

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.