Fresh Water Resources Self Check

Groundwater recharge

• is the result of precipitation

• sometimes occurs as a spring

• occurs rapidly in confined aquifers

• can cause saltwater intrusions

• does not occur in unconfined aquifers

Water diversion has significantly reduced the size of

• Lake Erie

• the Aral Sea

• the Nile

• Lake Baikal

• the Baltic Sea

In the United States, most water is used for

• agriculture

• households

• industry

• transportation

• hydroelectric plants

The geological layer, consisting of underground caverns and porous layers of sand, gravel, or bedrock, where groundwater flows, is called

• zone of saturation
• aquifer
• the water table
• surface water

The term subsidence refers to

• failure of the groundwater supply
• accumulation of silt behind a dam
• sinking of ground when water has been withdrawn
• intrusion of salt water into a freshwater aquifer

97 % of all water on Earth is in the oceans. Which of the following is the correct order of the Earth’s water storage compartments from largest to smallest?

• ocean, atmosphere, lakes, groundwater, rivers, ice caps

• ocean, groundwater, rivers, ice caps, atmosphere, lakes

• ocean, ice caps, groundwater, lakes, atmosphere, rivers

• ocean, lakes, ice caps, groundwater, atmosphere, rivers

How would cutting down trees affect water quality in a watershed?

• There would be no affect on water quality.
• Rivers and streams might become clogged with silt.
• Water levels would be reduced.
• The watershed divide would change.

What do you call water/precipitation that does not absorb into the ground and flows back into the Earth's bodies of water?

• runoff
• sediment
• transpiration
• pollution

The transition zone between dry areas of land and bodies of water are called:

• Wetlands
• Watersheds
• Divides
• Estuaries

Which of the following statements is true?

• Water is an unlimited resource.
• Water is a nonrenewable resource.
• Water is a renewable but limited resource.
• Water is renewable and unlimited.