Geology Quiz #9 (Chapter 17)

Which one of the following concerning stalactites and stalagmites is not true?

What force pushes groundwater from pore to pore below the water table?

________ controls the ease (or difficulty) of groundwater transmission through a porous material.

________ are specific features of karst topography.

The water table is ________.

Most caves and caverns originate by solution of limestone.

Which one of the following concerning artesian wells is not true?

For unconfined aquifers, what hydrologic factor is approximated by the slope of the water table?

An unconfined water table is the ________.

After ice sheets and glaciers, ________ contain(s) the next highest percentage of the Earth's freshwater.

Which of the following can logically be concluded by speleothems/dripstone hanging from a cave roof?

An artesian well is one in which ________.

How would hazardous substances behave that accidentally entered a groundwater system?

A perched water table develops when ________.

A ________ is the icicle-like speleothem that grows down from the roof of a cavern.

The hot spring deposits at Mammoth Hot Springs, Yellowstone National Park, are travertine. What rock probably lies somewhere beneath the hot springs?

Which one of the following is not a speleothem?

________ account for the largest usage of groundwater in the United States.

Excessive groundwater withdrawals can cause ________.

________ is the volume of voids or open space in a rock or unconsolidated material.

Which common, rock-forming mineral or mineral group is most readily dissolved by groundwater?

________ are characteristics found in all good aquifers.

What is the relationship between drawdown and the cone of depression associated with a pumping well?

The aerated zone ________.

________ would have the largest capacity to naturally remove sewage pollutants.

An aquifer is ________.

Which of the following describes the configuration of an unconfined water table around a pumping well?

Artesian groundwater conditions can develop in an inclined aquifer with aquitards above and below.

Porosity is a measure of the volume of open space in rocks and unconsolidated, geological materials like alluvium and soils.

Water-saturated muds have low permeabilities but can have greater porosities than well-cemented sandstone.