Phosphorous and ________ are usually responsible for cultural eutrophication.

Which of the following is NOT true concerning groundwater contamination?

If MTBE (methyl tert-butyl ether) has such an impact on groundwater, why is it added to gasoline?

Following Hurricane Floyd in 1999, residents in one part of the state of ________ were relocated from a badly impacted floodplain.

Any substance that, in excess, is known to be harmful to desirable living organisms is called a(n) ______

Which of the following would likely serve as an aquitard?

What is the principal social impact of mining operations?

What is the most important aspect of future oil supplies?

The vadose zone differs from the groundwater zone in what way?

Vegetation decreases runoff by