Question

The diagram below shows some ocean floor features. Which of these statements best compares Feature A and Feature B? (2 points) Question 12 options: 1) Feature A is a guyot and Feature B is a seamount. 2) Feature B is a guyot and Feature A is a seamount. 3) Feature A is an abyssal plain and Feature B is an ocean trench. 4) Feature B is an abyssal plain and Feature A is an ocean trench.

Answer 1

3) Feature A is an abyssal plain and Feature B is an ocean trench.

Explanation:

Looking at the attached image, we can see that feature A is an abyssal plain and feature B is an oceanic trench. This picture is topographic profile which shows the different parts of an ocean as we move from the shelf to the trenches.

• Abyssal plain is found on the ocean floor where we have ocean flat and rich sediment fines. This is the part labelled A.
• Part B is the deep oceanic trench usually found around subduction zones where two plates are colliding and one goes beneath the other.
• Abyssal plains are prominent along divergent margins as plates spreads away.

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sea floor spreading

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