Unfinished Test and Answers for Ch12Quiz

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1.

What is the direct cause of death for aquatic animals during eutrophication? ( Water Pollution and Its Control )

2.

The largest reduction in worldwide water use would be achieved by

3.

A marine protected area is ( Overfishing and Marine Conservation )

4.

The most cost-effective solution for groundwater depletion and land-level subsidence is ( How We Use Water )

5.

Which of the following is NOT a benefit of building the Three Gorges Dam on China's Yangtze River? ( How We Use Water )

6.

The world's ocean fisheries ( Overfishing and Marine Conservation

7.

Although more than two-thirds of Earth's surface is covered by water, many areas lack sufficient water to meet their drinking and agricultural needs. Why? ( Freshwater Systems )

8.

What caused the Aral Sea, the fourth-largest lake on Earth, to lose four-fifths of its volume in 40 years? ( How We Use Water )

9.

Ecosystem services provided by mangrove forests include all of these EXCEPT ( Marine and Coastal Systems )

10.

Which of the following is NOT a benefit of marine reserves? ( Overfishing and Marine Conservation )

11.

Use of the water from the Colorado River has ( How We Use Water )

12.

Salt can be removed from seawater by ( Solutions to Depletion of Fresh Water )

13.

Populations in ocean fisheries have been dropping for decades, but the amount of fish caught has not shown this drop. What factor is NOT responsible for hiding this drop in fish populations? ( Overfishing and Marine Conservation )

14.

Ocean areas of high productivity are often found ( Marine and Coastal Systems )

15.

An aquifer is

16.

An example of a non-point source of water pollution is ( Water Pollution and Its Control )

17.

Overpumping of groundwater causes all the following EXCEPT ( How We Use Water )

18.

The best term for managing fish populations by maintaining them at a maximum growth rate and achieving maximum yield while keeping fish available for the future is ( Overfishing and Marine Conservation )

19.

Groundwater is more easily depleted than surface waters because

20.

The largest single source of oil that accumulates in the ocean is ( Human Use and Impact )

A.

a portion of the ocean protected from some human activities but open to others, such as the laying of cables and some fishing.

B.

discharging more water loaded with silt into the ocean, helping to build the delta

C.

have been so overfished that fishing in some fisheries has been completely banned.

D.

in areas of upwellings.

E.

resulted in the river not reaching the Gulf of California at certain times of the year.

F.

decreased aquifer recharge.

G.

pesticide runoff from a residential neighborhood.

H.

an underground water source stored in porous rock or sand.

I.

a loss of dissolved oxygen in the water

J.

About 97% of the water on the planet is in the oceans and too salty for drinking or agriculture.

K.

mimicking the hydrologic cycle by capturing ocean water, hastening its evaporation with heat, and condensing the vapor.

L.

commercial fishing decreasing in areas adjacent to the marine reserve

M.

allowing no more water to be withdrawn from an aquifer than is naturally recharged.

N.

Moratoriums on fishing in certain areas (like the Georges Bank and the Grand Banks) have allowed fish stocks to recover and have helped to reseed other fishing areas.

O.

overconsumption by cotton farmers

P.

maximum sustainable yield.

Q.

groundwater recharge is much slower than recharge of surface water.

R.

providing habitat for human-made shrimp farms.

S.

cumulative small losses from boats and runoff from land.

T.

switching to drip or low-pressure spray crop irrigation.