Groundwater A.) forms when precipitation seeps into the soil

B.) exists above the earth's surface

C.) is impossible to pollute

D.) is not a usable water source for humans

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

How do cells grow and reproduce to maintain homeostasis?

If the dimensions of a cube-shaped cell with a length,height, and width of 1 micrometer were to double, what would be the cell's new ratio of surface area to volume? a.3 to 1 b.4 to 3 c.1 to 2 d1 to 6