environmental systems unit 7 quiz 1
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
