Which of the following is not an agricultural technique?
a.
irrigation
b.
selective breeding
c.
livestock herding
d.
none of the above

is this for the e2020 class

d we did this already

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.