AnswersRMA FL-2001310-EarthSpace Science Semester 2Forces in Earth's Crust

Forces in Earth's Crust Answers

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1
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What type of stress occurs when a rock mass is pushed in parallel and opposite directions?

A
compression
B
faulting
C
shearing
D
tension
2
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Which best describes how wedge basins form?

A
When two plates move apart, the weaker part of Earth’s crust moves down at normal faults where sediments are deposited until a basin forms.
B
At the area where two bent plates slide past each other, a depression forms where sediments are deposited.
C
When two plates collide, the non-subducting plate scrapes the subducting plate and forms a depression where sediments gather.
D
At the area of a depression between two plates, sediments continue to get deposited and become compacted.
3

The image is of the formation of a fault-block mountain.

Question illustration
A
The crust is compressed.
B
The crust does not spread apart.
C
The center block is forced upward.
D
The hanging walls from the two parallel faults slip down.
4

In which type of fault is the hanging wall above the footwall?

A
normal
B
reverse
C
strike-slip
D
horizontal
5

A scientist observes a feature where the hanging wall moved downward relative to the footwall. Which feature does the scientist observe?

A
anticline
B
syncline
C
normal fault
D
strike-slip fault
6

Where does shearing often occur?

A
along a normal fault
B
along a reverse fault
C
at a transform boundary
D
at a divergent boundary
7

Which force created a fault-block mountain?

A
compression
B
shearing
C
subduction
D
tension
8

A scientist observes a fault where the hanging wall has moved upward relative to the footwall. Which type of fault is the scientist observing?

A
normal
B
reverse
C
strike-slip
D
horizontal
9

A scientist observes rock masses that have moved past each other in opposite horizontal directions. Which feature does the scientist observe?

A
plateau
B
syncline
C
strike-slip fault
D
fault-block mountain
10

How is a plateau different from a fault-block mountain?

A
A plateau forms due to shearing, and a fault-block mountain does not.
B
A fault-block mountain forms from a reverse-fault, and a plateau does not.
C
A plateau forms when a flat block of rock is uplifted, and a fault-block mountain does not.
D
A fault-block mountain forms when the center block is uplifted, and plateau does not.

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