In your household, there is you, a cat, and a dog. how many populations are there?

0
1
2
3

The answer is 3 because cats are in one population , dogs are in one population , and i am in one poplution , so that is 3 populations.

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.