Which one of the following is not a major pollutant of Chesapeake Bay? a. Toxins
b. Wastes from aquatic organisms
c. Nutrients, particularly nitrogen and phosphorus
d. Soil and other sediments

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

What is the difference between topsoil and clay?