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

Use the drop-down menus to complete the sentences describing the important ideas in Hess’s theory.

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 3

✔ mid-ocean ridgescontinents deep-ocean trenches

Revolt · Accepted Answer

✔ mid-ocean ridges

Question 4

Look at the diagram and then answer the following questions.

Revolt · Accepted Answer

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

Question 5

mid-ocean ridgevolcano✔ deep-ocean trench

Revolt · Accepted Answer

✔ deep-ocean trench

Question 6

A✔ BCD

Revolt · Accepted Answer

✔ B

Characteristics of the Seafloor Answers

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