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WorksheetsEES2.3.2
Total questions: 29
Worksheet time: 38mins
Which of the following IS NOT true about groundwater?
Groundwater is the largest freshwater source on Earth.
Groundwater is freshwater beneath Earth’s surface.
Groundwater is the largest liquid freshwater source for humans.
Groundwater can maintain streamflow during times of drought.
Much of the water that flows in river systems is direct runoff from precipitation.
True
False
Groundwater is thus a form of _________that _______________ streams during periods when rain does not fall.
storage, sustains
precipitation, dehydrates
saltwater, dries up
mineral, lithifies
Which of the following implies the same thing as the word "aquifer"?
zone of saturation
zone of aeration
zone of soil moisture
zone of twilight
The top of an aquifer is known as:
the water table.
an artesian well.
the hydraulic gradient.
a geyser.
What does the quantity of groundwater that can be stored depend upon?
It depends upon the porosity of the underground rock.
It depends upon the pH of the groundwater.
It depends upon the underground depth of the storage system.
It depends upon the temperature of the underground rock.
A place where the water table intersects the ground surface and where a natural flow of groundwater results is called:
a spring.
a geyser.
an aquatard.
a fissure.
What is the most common method for removing groundwater?
a well bored into the zone of saturation
accessing the water table by use of low-grade explosives
building a water tower
damming up a river
Geologically, groundwater is important as an agent of:
erosion
deposition
lithification
subduction
What would cause the water table to lower?
High rates of evaporation and transpiration
Low rates of evaporation and transpiration
Increasing amounts of runoff
A heavy rainstorm with a lot of precipitation
What is infiltration?
The process by which water sinks into the ground
The zone where there are still air spaces left between the particles.
The process by which water vapor turns into liquid water and forms fog or clouds.
The process by which water does not sink into the ground, but rather travels along the surface.
Which of the following is NOT a solution to protect the water in the two wells in danger of becoming contaminated?
build an impermeable underground barrier to stop the oil flow
close the two wells and use an alternate water supply site
build a well between the two wells that goes deeper into the earth
pump out the water from the wells and chemically treat it to remove the pollution
How would several wells in a given area affect the balance of groundwater recharge and discharge?
The wells would provide dissolved oxygen.
The wells would increase the water table level by adding water from runoff.
The wells would deplete the groundwater which is usually supplied by percolation from rain.
The wells would provide storage areas for groundwater to maintain the water level.
Nonpoint pollution is hard to control because_____.
it often involves very large volumes of water coming from a single source.
“nonpoint” means that there is no point in trying to control it.
it is caused by small amounts of pollution from many places.
it contains high levels of pathogens.
What is saltwater intrusion?
when salty rain runs down a watershed and gets into the aquifer
the deposition of salt into rivers
the movement of salty ocean water into freshwater aquifers
The melting of glaciers contributing salt to the watershed
A community decides to upgrade its water purification and management systems. What lasting impact
could this have on available freshwater?
It could cause a decrease in water demand.
It could cause a decrease in the water levels.
It could cause an increase in waterborne diseases.
It could cause an increase in the freshwater supply.
Which best explains why population growth can result in water shortages and rationing in certain areas?
Aquifers recharge slowly.
Lake water is reserved for recreation.
Increasing biomass decreases evaporation rates.
Tall buildings impede the development of rain clouds.
Which is the most common contamination source for freshwater resources?
runoff
digging wells
melting of glaciers
lightning
Which of the following is most responsible for reducing the availability of freshwater in this country?
aquifer depletion
reservoir evaporation
non-point source pollution
boat and watercraft emissions
