Exam 17: Ground Water

Gasoline leaking from an underground storage tank will __.

Compared to the flow of water in streams,most ground water moves relatively slowly.

In confined aquifers the water is under pressure and rises to a level above the top of the aquifer.

Springs may form where a perched water table intersects the surface.

A(n)_______ is a body of saturated rock or sediment through which water can move easily.

A(n)_________ aquifer is completely filled with water under pressure and is separated from the surface by an aquitard.

The _____ is the zone above the water table.

Groundwater is a major economic resource.

When water is pumped out of an unconfined aquifer through a well,a ___ often develops in the water table.

A(n)____ is a body of ground water separated from the main water table by a zone that is not saturated.

______ are icicle-like pendants of calcite hanging from cave ceilings.

The saturated zone overlies the water table.

______ is a deposit of calcite that forms around hot springs.

Petrified wood develops when buried wood is saturated or replaced with calcite.

Artesian wells are associated with confined aquifers.

Shale is a common _____ because it retards the flow of ground water.

In parts of Texas and New Mexico the pumping of ground water has caused the water table of the Ogallala Reservoir to drop ____.

Given all other conditions are the same,ground water flows faster if __.

An area with many sinkholes and caves is said to have ___ topography.

The amount of fresh water stored in oceans is many times greater than the amount of ground water.