Distinguishing colostrum and normal milk and the significance of colostrum in nursing newborn calves?

you can have just about every answer you can think of

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.