Characteristics of the Seafloor

Question 1

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

Revolt · Accepted Answer

The crust at the ridge might form more quickly.

Question 2

mid-ocean ridgescontinents deep-ocean trenches

Revolt · Accepted Answer

mid-ocean ridges

Question 3

Pangaea landmass continental driftconveyor belt

Revolt · Accepted Answer

continental drift; Hess expanded on Wegener’s theory of .: continental drift; Hess proposed the idea that are places where crust is created.: mid-ocean ridges

Question 4

Look at the diagram and then answer the following questions.

Revolt · Accepted Answer

Letter A in the diagram indicates a .: deep-ocean trench; The oldest area in the diagram is .: B

Question 5

mid-ocean ridgevolcanodeep-ocean trench

Revolt · Accepted Answer

deep-ocean trench

Question 6

ABCD

Revolt · Accepted Answer

B

Characteristics of the Seafloor Answers

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