AnswersEnvironmental Science AThe Water Cycle

The Water Cycle Answers

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1
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Aquifers are _______.

A
structures used to transport water from city to city
B
created through evapotranspiration
C
densely packed snow close to becoming glaciers
D
layers of porous rock or sand
2
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Fertilizer in ponds or streams would most likely be considered point source pollution.

A
T
B
F
3

What role do aquifers play in the water cycle?

A
They store water in the ground.
B
They transfer water to the air.
C
They are the main source of water on Earth.
D
They move water through capillarity.
4

Which of the following contributes to nonpoint source pollution in water?

A
automobiles
B
oil refineries
C
paper mills
D
water treatment plants
5

How does water enter the atmosphere?

A
Liquid water evaporates from lakes when heated by the sun.
B
Frozen water sublimates from ice and snow.
C
Liquid water is lost from tree leaves during evapotranspiration.
D
All of the above.
6

Nearly 50% of water sources in the United States are believed to be polluted.

A
T
B
F
7

Where is water stored?

A
clouds
B
the ground
C
animals
D
all of the above
8

What happens to water in the atmosphere as it rises?

A
It evaporates.
B
It condenses and forms clouds.
C
It combines with other gases in the air.
D
It is used up.
9

What are the ways that water vapor can reenter the atmosphere?

A
sublimation
B
evaporation
C
evapotranspiration
D
all of the above
10

Why is nonpoint source pollution potentially more harmful than point source pollution?

A
Nonpoint source pollution disrupts the water cycle.
B
Nonpoint source pollution is difficult to regulate.
C
Nonpoint source pollution comes from more than one source.
D
Nonpoint source pollution is more damaging to living organisms than point source pollution.
11

Living organisms do not play a role in the water cycle.

A
T
B
F
12

The water on the Earth today has been sustaining life for millions of years.

A
T
B
F
13

How does capillarity help sustain life?

A
Plants use capillarity to move water from their roots to their leaves.
B
Capillarity allows water to form droplets.
C
Animals rely on capillarity to maintain their body temperatures.
D
Water’s capillarity allows many different substances to dissolve in water.
14

Plants and animals are comprised mainly of _______.

A
protein
B
carbohydrates
C
water
D
muscle

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