AnswersSS4 PGCPS EARTH SPACE OC SUMMER 2027 - 794243Lab: Mineral and Rock Classification

Characteristics of the Seafloor Answers

8 verified answers
1
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According to Hess’s theory, what might happen if the magma under a mid-ocean ridge cools?

A
The magnetic stripes might reverse direction.
B
The deep-ocean trench might become deeper.
C
The crust at the ridge might form more quickly.
D
The plates on either side of the ridge might stop moving.
2
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✔ mid-ocean ridgescontinents deep-ocean trenches

A
mid-ocean ridges
B
continents
C
deep-ocean trenches
3

A✔ BCD

A
A
B
B
C
C
D
D
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Pangaea landmass continental driftconveyor belt

A
Pangaea landmass
B
continental drift
C
conveyor belt
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mid-ocean ridgescontinents deep-ocean trenches

A
mid-ocean ridges
B
continents
C
deep-ocean trenches
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Look at the diagram and then answer the following questions.

Answers:
The process shown in this diagram is .:subduction
Letter A in the diagram indicates a .:deep-ocean trench
The oldest area in the diagram is .:B
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mid-ocean ridgevolcanodeep-ocean trench

A
mid-ocean ridge
B
volcano
C
deep-ocean trench
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ABCD

A
A
B
B
C
C
D
D

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