6N right and 10N & 2N left

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

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.