What is the name of the substance that makes plants green?

b.have there own function.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

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.