1. This type of weathering involves the formation of various types of carbonates in rocks? 2. This type of weathering or disintegration of rocks is caused by living organisms?
3. The process where animals like earthworms, rats, rabbits, and termite’s breakdown rocks.

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.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.