Rocks and the Rock Cycle — Unit test Answers

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1
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Which two processes are destructive forces that occur during sedimentary rock formation?

A
cementation and compaction
B
compaction and deposition
C
deposition and weathering
D
weathering and erosion
2
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Which rocks will likely weather the least?

A
rocks that are soft
B
rocks with a porous surface
C
rocks that are in a dry climate
D
rocks with minerals that dissolve easily
3

Which characteristic is used to classify metamorphic rocks as foliated or non-foliated?

A
grain size
B
layer thickness
C
arrangement of layers
D
arrangement of grains
5

Which term describes erosion?

A
creates small particles
B
hardens rock fragments
C
transports solid materials
D
dissolves rock components
6

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

A
earthquakes
B
hurricanes
C
snowfalls
D
thunderstorms
8

Which is one source of the sediments that form sedimentary rocks?

A
chunks of coal
B
particles in new rocks
C
liquid magma
D
materials dissolved in solutions
9

Study the image of this rock.

Question illustration
A
jagged
B
oval
C
round
D
smooth
11

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.
13

Which is one source from which metamorphic rocks form?

A
soil particles
B
igneous rock
C
molten material
D
sand particles
14

Which phrase best describes igneous rocks?

A
form when lava and magma cool
B
accumulate sediments following erosion
C
require heat and pressure to be formed
D
consist of many sediment layers
15

Where are extrusive igneous rocks typically found?

A
in a canyon
B
in a riverbed
C
near a dormant volcano
D
deep under Earth’s surface

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