Unit 5 Quiz water

What kind of rocks serve as aquifers in the Piedmont and the Blue Ridge areas of Georgia? (Evaluate all choices carefully.)

1 and 3

What sort of fluids can be found in the pores of rock?

All of the above

Which of the following might be used as flood-control structures:

All of the above

The Hjulstrom diagram shows the relationship between grain size of transported sediment and water velocity. Which is easier to erode?

Sand

The erosion of sand and other loose particulate sediment occurs by:

Scour

Urbanization increases surface runoff and enhances the flooding potential.

True

How can inorganic contaminants be introduced in the groundwater systems? They may be ________.

all of the above

The water table is defined as the:

all of the above

Select the definition that best matches the list of hydrologic terms.

aquitard-porous rock but with low permeability aquiclude-virtually impermeable rock aquifer-porous and permeable rock

In a meandering stream, erosion occurs ________.

at the cut banks

_______ is the zone around a well in which the water table is lowered.

cone of depression

An aquifer sandwiched between two aquicludes is called:

confined aquifer

Artesian wells appear in ________.

confined aquifers

The amount of water flowing past a point in a given unit of time is called:

discharge

Salts and other chemicals carried by a stream are part of its:

dissolved load

When water velocity drops, what grain size remains in suspension the shortest?

gravel

Part of the hydrologic cycle, when water percolates into the land, is called:

infiltration

Primary porosity occurs as ________.

open spaces left between sediment grains at the time of the rock's formation

What is the property that describes the ability of water to flow through rocks

permeability

Most of the water supply in Georgia (particularly near large population centers) comes from:

reservoirs along rivers

What type of problem related to groundwater withdrawal and/or pollution is likely to be a threat to coastal aquifers and not to aquifers in the continental interior?

saltwater encroachment

Which will have the HIGHEST permeability?

sandstone

A measure of the maximum size of sedimentary particles that a stream can carry is called:

stream competency

In what type of aquifer is the recharge area larger?

unconfined aquifers