Exam 13: Groundwater

An impermeable layer which prevents the passage of groundwater is a(n)____________________

By definition,the porosity of rocks/sediments consists of pore spaces between particles/grains.

What is the general term for deposits of calcite and/or aragonite within caves?

Briefly explain how some limestone and other carbonate rocks can have high porosity and permeability.

Most detrital rocks are neither porous nor permeable.

What factors contribute to the high degree of local variability in the amount of groundwater arsenic?

In what ways are geysers and undersea hydrothermal vent sites similar?

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

Why are porosity and permeability important when considering groundwater?

What causes the subsidence that sometimes accompanies groundwater use?

What are the health effects of drinking water with high concentrations of arsenic?

What are some possible consequences of modifications to the groundwater system caused by human usage?

What is the heat source for hydrothermal activity on land?

States in which there is extensive karst topography include which of the following?

During times of drought,the water table ____________________.

What is karst topography?

A stream that just disappears has flowed ____________________.

What is one method that can be used in the construction of a landfill which will make it less likely to contaminate groundwater? Why is this done?

Groundwater will move through any rock/sediment or soil that is porous.

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