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Chapter 11
The Flow of Fresh Water
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1. In the water cycle, the sun’s energy causes
A evaporation.
B condensation.
C precipitation.
D percolation.
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Chapter 11
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1. In the water cycle, the sun’s energy causes
A evaporation.
B condensation.
C precipitation.
D percolation.
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2. Which one of the following landforms results from
river and stream erosion?
A mountains
B glaciers
C river channels
D aquifers
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2. Which one of the following landforms results from
river and stream erosion?
A mountains
B glaciers
C river channels
D aquifers
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3. The water cycle involves energy changes and
continuous movement of water between Earth and its
atmosphere. Condensation primarily takes place
A on Earth’s surface.
B in the atmosphere.
C in the oceans.
D in the polar ice caps.
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3. The water cycle involves energy changes and
continuous movement of water between Earth and its
atmosphere. Condensation primarily takes place
A on Earth’s surface.
B in the atmosphere.
C in the oceans.
D in the polar ice caps.
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4. In a shower, many small streams of water combine
to form larger streams, which eventually combine and
flow down the drain. This is a simple model of which
feature?
A a youthful river
B a divide
C a mature river
D a watershed
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4. In a shower, many small streams of water combine
to form larger streams, which eventually combine and
flow down the drain. This is a simple model of which
feature?
A a youthful river
B a divide
C a mature river
D a watershed
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5. Lakes form in areas where
A wells are drilled.
B the water table is below Earth’s surface.
C the water table is above Earth’s surface.
D there are placer deposits.
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5. Lakes form in areas where
A wells are drilled.
B the water table is below Earth’s surface.
C the water table is above Earth’s surface.
D there are placer deposits.
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6. In which steps of the water cycle does water lose
energy?
A evaporation
B condensation
C precipitation
D all steps
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6. In which steps of the water cycle does water lose
energy?
A evaporation
B condensation
C precipitation
D all steps
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7. The table shows average levels of dissolved oxygen
(DO) in a lake every ten years from 1950 to 2000. In this
time period, the DO level in the lake decreased from 8.1
milligrams per liter (mg/L) to 5.0 mg/L. What was the
average decrease per year in the DO level over this 50year period?
A 3.1 mg/L
B 0.162 mg/L
C 0.100 mg/L
D 0.062 mg/L
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7. The table shows average levels of dissolved oxygen
(DO) in a lake every ten years from 1950 to 2000. In this
time period, the DO level in the lake decreased from 8.1
milligrams per liter (mg/L) to 5.0 mg/L. What was the
average decrease per year in the DO level over this 50year period?
A 3.1 mg/L
B 0.162 mg/L
C 0.100 mg/L
D 0.062 mg/L
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8. Where does a natural spring occur?
A where water enters an aquifer
B where the zone of aeration meets Earth’s surface
C where the water table meets Earth’s surface
D where the zone of aeration meets the zone of
saturation
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8. Where does a natural spring occur?
A where water enters an aquifer
B where the zone of aeration meets Earth’s surface
C where the water table meets Earth’s surface
D where the zone of aeration meets the zone of
saturation
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9. Where does a rejuvenated river form?
A where the buildup of groundwater pressure raises the
land
B where tectonic activity raises the land
C where the land sinks due to tectonic activity
D where new tributaries feed into an old river
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9. Where does a rejuvenated river form?
A where the buildup of groundwater pressure raises the
land
B where tectonic activity raises the land
C where the land sinks due to tectonic activity
D where new tributaries feed into an old river
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10. The Savannah River watershed covers parts of
Georgia, North Carolina, and South Carolina. What are
the streams and rivers that flow into the Savannah River
called?
A aquifers
B gradients
C tributaries
D deltas
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10. The Savannah River watershed covers parts of
Georgia, North Carolina, and South Carolina. What are
the streams and rivers that flow into the Savannah River
called?
A aquifers
B gradients
C tributaries
D deltas
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11. Stream and river deposits include
A glaciers.
B caves.
C stalagmites and stalactites.
D alluvial fans.
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11. Stream and river deposits include
A glaciers.
B caves.
C stalagmites and stalactites.
D alluvial fans.
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12. At which point in the diagram is precipitation most
likely taking place?
A Point A
C Point C
B Point B
D Point D
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12. At which point in the diagram is precipitation most
likely taking place?
A Point A
C Point C
B Point B
D Point D
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13. How might the water level of an aquifer affect water
wells that are drilled into the aquifer? How can the wells
affect the water level of an aquifer?
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13. Answer - Full credit answers should include the
following points:
• If a well is not deep enough, it will dry up when the
water table falls below the bottom of the well.
• If an area has too many wells, groundwater can be
removed rapidly.
• If groundwater is removed too rapidly, the water table
will drop and all of the wells will run dry.
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14. There are more than 500 caves in Georgia, many of
them in the far northwestern counties of Dade and
Walker. How do caves form in existing layers of
limestone?
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14. Answer - Full credit answers should include the
following points:
• Limestone is permeable, so water can seep through it.
• Caves are formed in limestone by weak acids in
circulating groundwater.
• Over time, the acidic water erodes caves from tiny
cracks in the limestone.
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