Which of these physical factors most shapes the characteristics of a ecosystem?

thinking it would be d not too sure but i think it's right

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

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.