environmental systems unit 7 quiz 1

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Groundwater is a _____ resource.

renewable

permeability

the measure of how well water can move through the pores in a substance

Since 1900, _____% of the earth's wetlands have been los

50

People are currently using _____ % of all the accessible fresh water contained in rivers, lakes, and underground aquifers.

54

In developing countries, _____% of industrial wastes are dumped directly into the water without being treated.

70

porosity

a measure of how many holes are in a substance

reservoir

a natural or artificial place to store water

watershed

a region that drains into a certain body of water

If two people share ___, then one can deplete his neighbor's water by withdrawing too much water from his own well.

an aquifer

unconfined aquifer

an aquifer in which the water infiltrates the ground directly above the aquifer

confined aquifer

an aquifer with a surface that keeps water from infiltrating, so the water must enter the aquifer at a point farther away

__ aquifers receive little to no recharge.

fossil

Fossil water is a _____ resource.

nonrenewable

A(n) ___ aquifer is most easily polluted.

unconfined

A(n) ___ aquifer is most easily recharged.

unconfined

aquifer

underground rocks and formations that are able to hold water

recharge

water added to aquifers through precipitation

groundwater

water that has been infiltrated below ground

fossil water

water trapped in ancient aquifers formed 12,000 years ago or more

The usable fresh water people need is found in ____.

watersheds


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