Unit 3: Test Answers

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In a field, water flows down through the soil and then through a layer of loose rocks before the flow stops.What type of material did the water most likely encounter when it stopped?

A
a layer of granite
B
another soil layer
C
a layer of rocks with cracks
D
another layer of loose rocks
24
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A scientist is observing surface groundwater features to determine sources of groundwater.Which is one surface feature that the scientist can observe and map?

A
spring
B
saturated zone
C
aquifer
D
water table
25

Which event occurs after Earth’s surface experiences weathering?

A
Wind carries sediments to a new location.
B
Ice forms cracks in large rocks.
C
Moving water breaks sediments into pieces.
D
Surface materials wear down into sediment.
26

A small, jagged particle with a density of 1.2 g/cm3 deposits on the ground before a large, round particle with a density of 0.82 g/cm3.Which most likely influences the rate of deposition of the jagged particle?

A
large size
B
low density
C
high density
D
irregular shape
27

Which describes bedrock?

A
consists of solid rock
B
lies directly above the soil layer
C
does not contain weathered rock
D
forms from decomposed material
28

How do oxbow lakes form?

A
Rivers are dammed, and the water builds up, creating a lake.
B
Runoff pools in areas of low elevation, creating a temporary lake.
C
Rivers wear away banks until the bank is broken and the river flows straight.
D
Glaciers leave deep channels in the ground, which fill with water and become a lake.
29

Which process involves wind moving loose sediment?

A
abrasion
B
deflation
C
impact
D
plucking
30

Which action would best help prevent groundwater erosion?

A
using breakwaters
B
packing down soil
C
building drains with outlets
D
increasing the slopes of riverbanks
31

Which term describes erosion?

A
creates small particles
B
hardens rock fragments
C
transports solid materials
D
dissolves rock components
32

Which statement describes Florida?

A
Florida is an island made of limestone.
B
Florida is an island made of shale.
C
Florida is a peninsula made of limestone.
D
Florida is a peninsula made of shale.
33

Which correctly lists the three types of rock particles that make up soil?

A
air, clay, and sand
B
clay, water, and silt
C
sand, clay, and silt
D
silt, water, and air
34

Which event can cause slumps, landslides, and mudflows to occur?

A
earthquakes
B
hurricanes
C
snowfalls
D
thunderstorms

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