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
