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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Which of the following statements is true?
a. | 1 % of the Earth’s water is
salty | b. | 3 % of the Earth’s water is
underground | c. | 97 % of the Earth’s
water is fresh | d. | 97 % of the Earth’s
water is salty |
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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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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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10.
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What kind of rock has spaces or pores in it where water can
be stored?
a. | impermeable | c. | permeable | b. | salinated | d. | igneous |
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11.
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When rain water infiltrates or soaks into the ground,
it becomes what?
a. | runoff | c. | groundwater | b. | a
spring |
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12.
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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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13.
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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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14.
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Look at this graph, 
If we
add together the amount of water found in rivers, swamps, lakes, ice caps, glaciers, and
groundwater, 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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15.
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What word describes how much salt is in the
ocean?
a. | permeable | c. | salinity | b. | desalination | d. | useable |
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16.
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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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17.
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Why is more than half of the world’s freshwater supply
difficult to use?
a. | it is groundwater and is difficult to
locate | c. | it is located deep within the Earth, where drilling is
difficult | b. | lakes and streams are heavily polluted | d. | it is frozen into the polar
icecaps and glaciers |
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18.
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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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19.
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Look at this graph, most of the water on the Earth is
what?
a. | freshwater | c. | icecaps and
glaciers | b. | saline | d. | lakes |
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20.
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Which graph shows how the Earth is divided between land and water?
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