Natural selection is an example of a mechanism of evolution. does this mechanism produce a change in individuals or populations? explain!

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the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

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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.