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Surface Water Answers

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1
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Which phrase describes runoff?

A
underground water that flows into lakes
B
river water that empties into an ocean
C
water from streams that flows into larger rivers
D
water from rain and snow that travels to streams
2
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Which statement identifies a reason to preserve wetlands?

A
They supply water to river systems.
B
They store floodwaters.
C
They divide different watersheds.
D
They are used for hydroelectricity.
3

How do rivers become larger as they travel across land?

A
Groundwater rises, adding water to rivers.
B
Tributaries combine, adding water to rivers.
C
Ice sheets melt slowly, adding water to rivers.
D
Rainfall in an area increases, adding water to rivers.
4

Why are plants unable to grow at the bottom of lakes?

A
The water is colder at the bottom.
B
Sunlight does not reach the bottom.
C
Groundwater feeds into the bottom.
D
Less fresh water is found at the bottom.
5

How does a pond form?

A
A mudflow blocks a river.
B
Water collects in a low-lying area.
C
Humans use a dam to create a reservoir.
D
A depression made by an ice sheet fills with water.
6

How do icebergs form?

A
They form when seawater freezes.
B
They form when groundwater freezes.
C
They break off from the coast of Iceland.
D
They break off large ice sheets found at the poles.
7

Which statement best describes the streams on either side of the Great Divide?

A
They feed different water sheds.
B
They channel rain to the Pacific Ocean.
C
They flow into the same drainage basin.
D
They have some of the same large rivers.
8

Where is most of Earth’s fresh water found?

A
in the ground
B
near the poles
C
in lakes and streams
D
in the air as water vapor
9

Which phrase describes a feature of groundwater?

A
feeds rivers
B
provides habitats
C
makes up 75% of fresh water
D
used for hydroelectric power
10

How do wetlands form?

A
Tributaries flow into rivers.
B
Runoff travels down the side of a divide.
C
Water builds up in a depression left by an ice sheet.
D
Groundwater comes to the surface and floods the land.

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