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Physical Science, 5/e
Bill Tillery, Arizona State University

Earths Waters

Chapter 26 Multiple Choice Quiz 2

Please answer all questions



1

The most abundant chemical compound at the surface of the earth is
A)silicon dioxide.
B)nitrogen gas.
C)water.
D)minerals of iron, magnesium, and silicon.
2

Of the total supply, the amount of water that is available for human consumption and agriculture is
A)97 percent.
B)about two-thirds.
C)about 3 percent.
D)less than 1 percent.
3

Considering yearly global averages of precipitation that fall on and evaporate from the land,
A)more is precipitated than evaporates.
B)more evaporates than is precipitated.
C)there is a balance between the amount precipitated and the amount evaporated.
D)there is no pattern that can be generalized.
4

In general, how much of all the precipitation that falls ends up as runoff and groundwater?
A)97 percent
B)about half
C)about one-third
D)less than 1 percent
5

Groundwater is
A)any water beneath the earth's surface.
B)water beneath the earth's surface from a saturated zone.
C)water that soaks into the ground.
D)any of the above.
6

In a region of abundant rainfall a layer of extensively cracked, but otherwise solid, granite could serve as a limited source of groundwater because it has
A)limited permeability and no porosity.
B)average porosity and average permeability.
C)no permeability and no porosity.
D)limited porosity and no permeability.
7

How many different oceans are actually on the earth's surface?
A)14
B)7
C)3
D)1
8

The largest of the three principal ocean regions of the earth is the
A)Atlantic Ocean.
B)Pacific Ocean.
C)Indian Ocean.
D)South American Ocean.
9

The Gulf of Mexico is a shallow sea of the
A)Atlantic Ocean.
B)Pacific Ocean.
C)Indian Ocean.
D)South American Ocean.
10

Measurement of the salts dissolved in seawater taken from various locations throughout the world show that seawater has a
A)uniform chemical composition and a variable concentration.
B)variable chemical composition and a variable concentration.
C)uniform chemical composition and a uniform concentration.
D)variable chemical composition and a uniform concentration.
11

The percentage of dissolved salts in seawater averages about
A)35%.
B)3.5%.
C)0.35%.
D)0.035%.
12

The salinity of seawater is increased locally by
A)the addition of water from a large river.
B)heavy precipitation.
C)the formation of sea ice.
D)none of the above.
13

Considering only the available light and the dissolving ability of gases in seawater, more abundant life should be found in a
A)cool, relatively shallow ocean.
B)warm, very deep ocean.
C)warm, relatively shallow ocean.
D)cool, very deep ocean.
14

The regular, low profile waves called swell are produced from
A)constant, prevailing winds.
B)small, irregular waves becoming superimposed.
C)longer wavelengths outrunning and outlasting shorter wavelengths.
D)all wavelengths becoming transformed by gravity as they travel any great distance.
15

If the wavelength of swell is 10.0 m, then you know that the fish below the surface feel the waves to a depth of
A)5.0 m.
B)10.0 m.
C)20.0 m.
D)however deep it is to the bottom.
16

In general, a breaker forms where the water depth is about 1 1/3 times the wave
A)period.
B)length.
C)height.
D)width.
17

The largest of all ocean waves is the
A)tidal bore.
B)swell.
C)storm wave.
D)tsunami.
18

Ocean currents are generally driven by
A)the rotation of the earth.
B)the prevailing winds.
C)rivers from the land.
D)all of the above.
19

The greatest volume of water is moved by the
A)Mississippi River.
B)California Current.
C)Gulf Stream.
D)Colorado River.
20

The continental shelf, which is covered with an average depth of 130 m of seawater, is part of (the)
A)continent, which is why it is called the continental shelf.
B)abyssal plain.
C)ocean basin.
D)none of the above.