Identify two ways that scientists address bias in their research.

Scientists can address bias in their studies by simply measuring with a certain group. The scientist will not address the any other groups which is what makes the situation biased. Also, a scientist can only state his/her opinions and not acknowledge any other previous research. Hope this helped :))

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.