Does a particle of a liquid or particle of a gas have more kinetic energy

Liquid because it's always moving somehow, so the particles have more kinetic energy

your answer is "the 1950's"

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.