BJU Earth Science Ch. 17 Groundwater

If water is safe for drinking and cooking, it is described as ____.

If a stalactite and a stalagmite meet as they grow toward each other, they form a(n) ___

What is (C)?

The water cycle not only recycles water, it also purifies it.

What is (F)?

A(n) ___ is a stone arch that can be formed by the erosion and collapse of a solution cave.

What has happened when the groundwater reservoir in an area has been recharged?

A(n) ___ forms when the roof of a solution cave becomes so thin that it collapses under its own weight.

Which of these is an icicle-shaped formation of calcium carbonate hanging from a cave ceiling?

Which of the following is not associated with the other three?

What is (B)?

Stalactites and stalagmites take hundreds or thousands of yeas to grow to a significant size.

The ground directly above the zone of saturation wetted by water from below.

What is (D)?

A layer of rock that directs groundwater from one place to another is a(n)

Located above the main water table and held in place by an impermeable layer.

What are some recreational uses for water?

Speleothems are a type of primary limestone deposit.

A region that has undergone extensive chemical weathering of solid rock such as limestone is ___ topography.

Groundwater is pure water.

How would you know that a layer of rock was permeable?

Recharging groundwater has been practiced successfully by governments if natural recharge doesn't keep up with demand.

What percentage of the earth's freshwater is groundwater?

The water level below which the ground is saturated.

A flow of groundwater from the surface of the ground, usually on a hillside

Some creationary scientists link solution-cave formation to the Genesis flood.

The water-filled region below the water table

The pH of groundwater near the surface is usually

Rocks that contain many cracks and open spaces between particles are

Sandstone is an impermeable type of rock.

The ___ includes the complete route by which water leaves the oceans by evaporation and then returns to them.

What is (A)?

Pumice is not porous since its holes are not connected to one another.

What is (E)?

What is the name for a professional cave scientist?

The flow of groundwater is primarily influenced by

Which of the following does NOT belong with the other three?

Ground with open spaces above the water table.

___ water has a high concentration of dissolved calcium and magnesium compounds.

Compared to similar invertebrates on the outside, cave invertebrates are more likely to have

____ is water located beneath the earth's surface.

Why is the water molecule such a powerful solvent?

Which of the following is not a flowstone?

Hard water

Generally, the water table is higher in the spring.

___ is the chemical compound that is the main constituent of most solution cave formations.

A natural material that water does NOT pass through readily is