Exam 12: Groundwater

States in which there is extensive karst topography include:

Rocks such as limestone and granite cannot be groundwater reservoirs.

What is one of the beneficial results of movement of water within the ground?

Why are porosity and permeability important to groundwater?

About 22% of all usable water in the United States comes from groundwater.

How can granite and many other dense igneous and metamorphic rocks be groundwater reservoirs?

One common, widespread sedimentary rock that is readily dissolved by groundwater is ____________________.

Describe saltwater incursion. What methods are used to counteract saltwater incursion?

How do septic systems work to make sewage safe for use as a water source?

What are hot springs, and what are the sources of heat?

Where does groundwater discharge naturally?

Subsidence can occur as the result of extraction of oil.

Briefly explain why the groundwater table does not rise fastest in areas of low elevation.

How can limestone be dissolved by groundwater when it is almost insoluble in pure water?

In hilly country, the groundwater table's highest elevation occurs in stream valleys and around lakes.

What is water table?

What are the most common sources of groundwater contamination?

How are stalactites different from stalagmites? Why do they typically form in pairs and often merge to form a column?

An example of a rock type that could be a good aquifer is:

Saltwater incursion occurs primarily along coastlines.