What geologic forces shaped michigan?

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

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.