EnvSci 10-1 & 10-2 Our FreshWater Supply

Most aquifers are rapidly recharged through precipitation that percolates downward through soil and rock.

• True

• False

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Technology used at desalination plants can increase supplies of fresh water.

• True

• False

Tags

NGSS.MS-ETS1-1

Water in aquifers typically moves only a meter or so (about 3 feet) per year and rarely more than 0.3 meter (1 foot) per day.

• True

• False

Tags

NGSS.MS-ESS2-4

Shifting to a diet that includes less meat can help reduce a person’s water footprint.

• True

• False

Tags

NGSS.MS-ESS2-4

Overpumping of aquifers is leading to _____.

• increased flooding

• artificially low food prices

• decreased subsidence

• dropping water tables

• expansion of farm operations

Tags

NGSS.HS-ESS2-5

Surface runoff is water that _____.

• returns to the atmosphere through evaporation

• soaks into the ground through soil and rock

• is wasted during flood irrigation of crops

• drains into a particular body of water

• falls directly on land as rain and snow

Tags

NGSS.MS-ESS2-4

Which statement about Earth’s supply of fresh water is correct?

• About 70% of Earth’s fresh water is available for human use.

• Earth’s freshwater supplies are not recycled.

• Earth’s freshwater supply is not distributed evenly.

• Global atmospheric warming will not alter the hydrologic cycle.

• Most of Earth’s annual surface runoff is available for human use.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-4

Which of the following increases reliable surface runoff by a significant amount?

• fracking

• construction of dams

• flood irrigation

• drip irrigation

• water conservation subsidies

Tags

NGSS.MS-ESS2-4

Desalination can _____.

• produce fresh water at low cost

• threaten marine ecosystems

• increase supplies of reliable surface runoff

• be most practical for less-developed countries

• cause subsidence above aquifers

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which government policy encourages waste of water?

• subsidies to improve efficiency of water use

• subsidies to keep the price of water high

• regulations that prevent dam building

• using full-cost pricing for water use

• price breaks on electricity used to pump aquifers