WorksheetsEES 2.4
Total questions: 15
Worksheet time: 8mins
A cone of depression occurs in what structure when water
is used more than its recharge?
Aquitard
Well
Aquifer
Spring
Most of the world’s freshwater is trapped where?
Glaciers and Ice Caps
Lakes, Rivers and Streams
Groundwater
Atmosphere
97% of Earth’s water is considered what type?
Freshwater
Saltwater
Groundwater
Surface Water
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.
Only about 2.5% of all water on our planet is freshwater. However, _________.
most of this is in large, freshwater lakes.
over half of this is in wetlands near coastlines and is becoming contaminated with salt water.
over half of this is extremely hard water and is nearly unusable for drinking or agriculture.
most of this is far from where humans live.
Humans use freshwater primarily for_________.
Agricultural Irrigation
Drinking and Cooking
Mining and Industrial Processes
Electrical Production
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 consequence could a growing human population have on drinkable water?
It could cause a decrease in the amount of waste and pollutants in the water supply.
It could cause an increase in the amount of water available for the population.
It could cause an increase in cases of waterborne diseases.
It could cause a decrease in needing water for survival
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
A local government is considering whether to build a dam. Which is an advantage of building this
structure?
It can decrease the accumulation of sediment in the water.
It can improve the natural habitat of plants and animals.
It is an inexpensive process.
It can create a storage place for water.
The drilling for freshwater increases along a coastal area. What is a likely consequence of this action?
an intrusion of saltwater into aquifers
the loss of water resources in estuaries
the destruction of estuaries because of an increase in sea levels
a decrease in salt concentration in inlet waterways
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
