Which lens should you use to first look at a slide

Scanning lens

Explanation:

the growth of the plants is affected by the heat of the light. what is the student doing?

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.