WorksheetsFreshwater
Total questions: 20
Worksheet time: 12mins
A cone of depression occurs in what structure when water
is used more than its recharge?
Aquitard
Well
Aquifer
Spring
Which of the following choices correctly shows the Earth’s fresh water reservoirs from greatest to least in terms of volume of water?
Atmosphere, lakes and rivers, continental and alpine glaciers, groundwater.
Continental and alpine glaciers, groundwater, lakes and rivers, atmosphere.
Oceans, Continental and alpine glaciers, lakes and rivers, groundwater.
Atmosphere, continental and alpine glaciers, lakes and rivers, groundwater.
The term describing underground layers of rock or sediment which transmit groundwater is called what?
Saturated Zone
Influent Streams
Aquicludes
Aquifers
What is the major difference between porosity and permeability?
Permeability describes the amount of water a rock or sediment layer can hold, and porosity is the ability of the rock or sediment layer to allow water to pass through it.
Its depth has the best potential for a good supply of water.
Porosity describes the amount of water a rock or sediment layer can hold, and permeability is the ability of the rock or sediment layer to allow water to pass through it.
Porosity describes groundwater and permeability describes underground oil and natural gas.
In the saturated zone, pore spaces within rock or sediment
can hold what?
Water
Both Air and Water
Air
Neither Air nor Water
How many river basin make-up North Carolina River Basin systems?
4
11
17
21
Most of the world’s freshwater is trapped where?
Glaciers and Ice Caps
Lakes, Rivers and Streams
Groundwater
Atmosphere
In what type of soil would infiltration occur the slowest?
Soil
Gravel
Fine Clay
Silt
Land area drained by a stream system is known as what?
Tributary
Watershed
River Basin
Aquifer
Water that lies on the surface of the Earth like streams, river, and lakes are considered what?
Surface Water
Groundwater
Aquifer
Flood
The unending circulation of Earth’s water supply is known as what?
Flood
Surface Water
Water Cycle
Groundwater
Portion of land drained by a river and its tributaries is known as what?
Aquifer
Tributary
River Basin
Watershed
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.
Most nonpoint pollution comes from_______.
water put back into lakes and rivers by wastewater treatment plants.
untreated stormwater flow (runoff) draining from paved areas and farm fields.
slowly moving nutrient-rich water.
phosphorus in laundry detergents.
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.
One-fifth of Earth’s total freshwater supply is in ______.
Groundwater
Ponds
The Tundra
The Ocean
Humans use freshwater primarily for_________.
Agricultural Irrigation
Drinking and Cooking
Mining and Industrial Processes
Electrical Production
Which of the following best describes floodplains?
An area that is periodically flooded because humans have altered the landscape.
A region of land that has been deliberately, permanently flooded due to human disturbance, such as dam building.
A region of land that is periodically flooded when a river overflows.
An area where flood irrigation of crops is used such as a rice paddy.
