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

Bioremediation is a waste management and cleaning process that uses live biological organisms, usually microorganisms, (such as bacteria, fungi, and yeast) to degrade or remove hazardous substances from a contaminated area. This process is less expensive and it can also be used to treat polluted water.

Erosion is the wearing away of the earth surface in which soils, rocks and other substances are moved from one location to another by the action of water or wind.