1. the process of cleaning up an environment by using live organisms a. erosion b. bioremediation c. eradication d. biodiversity 2. the process of breaking down rock and soil layers with the action of water a. erosion b. bioremediation c. the water cycle d. percolation 3. the variety of organisms able to adapt to various environments on earth a. bioremediation b. specieis c. biodiversity d. collection 4. classified as not living a. endemic b. abiotic c. unique d. biotic 5. the process of passing the liquid through a porous filter, or action of water through the soil. a. the water cycle b. erosion c. percolation d. adaption