Multiple Choice
Identify the choice that
best completes the statement or answers the question.
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1.
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An underground layer of permeable rock that contains water
is
a. | impermeable | c. | an
aquifer | b. | a reservoir | d. | a
glacier |
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2.
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How much of the Earth’s water is useable by
man?
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3.
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How does the amount of freshwater compare to the amount of
saltwater?
a. | there is more freshwater | c. | there is only a
tiny amount of freshwater | b. | there is twice as much
saltwater | d. | there is the same amount of each |
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4.
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Why is it important not to have a well for drinking water
near a landfill?
a. | pollution from the dump might leach down into the
aquifer | b. | it is alright to dig a well near a
landfill | c. | it might get hit by a garbage truck | d. | the well might flood the garbage dump |
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5.
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The total salinity of the world’s oceans
is
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6.
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Most of the Earth’s freshwater is found
a. | in lakes and rivers | c. | in icecaps and
glaciers | b. | in the atmosphere | d. | in the
groundwater |
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7.
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The process of removing salt from ocean water so that it is
drinkable.
a. | infiltration | c. | is called
hydroscopic chlorination | b. | has not been
invented | d. | desalination |
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8.
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The scientific name for all the water on the Earth
is
a. | the ocean | c. | the
atmosphere | b. | the
hydrosphere | d. | the lithosphere |
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9.
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The Earth’s surface
a. | has the same amount of land and water | b. | has about three times more water than land | c. | is covered mostly by land | d. | is covered by more water
than land |
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10.
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In order from greatest amount to least amount, the
Earth’s water is
a. | fresh water, salt water, frozen fresh
water | b. | salt water, frozen fresh water, liquid fresh
water | c. | fresh water, frozen fresh water, salt
water | d. | frozen fresh water, salt water, liquid fresh
water |
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11.
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What kind of rock has spaces in it where water can be
stored?
a. | impermeable | c. | permeable | b. | salinated | d. | igneous |
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12.
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When rain water infiltrates into the ground, it
becomes what?
a. | runoff | c. | groundwater | b. | a
spring |
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13.
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Most of the water on the Earth is found
a. | in river and a lakes | c. | in the
oceans | b. | in the polar icecaps | d. | underground |
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14.
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A large lake that is used to provide water to a city
is
a. | usually underground | c. | an
aquifer | b. | a reservoir | d. | created by
desalination |
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15.
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If we add together the amount of water found in rivers,
lakes, ice caps and underground, we
a. | find out how much water is on the
Earth. | b. | find out how much water we can use | c. | find out how much fresh water is on the Earth | d. | find where the best place to get water is |
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16.
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Which factor is MOST important in determining how much
groundwater can be stored in underground rock?
a. | the rock's geologic age | c. | the rock's porosity | b. | the rock's
hardness | d. | the rock's location |
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17.
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In rural areas, most people get their drinking water
from
a. | reservoirs | c. | rivers and
lakes | b. | aquifers | d. | desalination
plants |
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18.
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The salts in the sea come from
a. | acid rain. | c. | weathering and
erosion of rocks. | b. | organisms that live in the
sea. | d. | particles falling from space. |
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19.
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Only 3% of the water on Earth is freshwater. About 60% of
that water is not available for man's use. Why is this?
a. | it is polluted | c. | it is in
aquifers | b. | it is frozen | d. | it is too
salty |
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20.
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If you could put all the Earth’s water in a 5 gallon
bucket, how much would be freshwater?
a. | enough to fill a soft drink cup | c. | ½ of the bucket full | b. | most of the
bucket | d. | about 2 cups |
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