2 Answers

Chrisofspades · Answer 1 · 2020-06-18T22:03:16+0000

Answer:

Step-by-step explanation:

The answer is A. temperature differences in the mantle.

Explanation: A change in temperature will change the mantle's density. The heavier mantle will drop down while the lighter mantle will float up; forming a convection flow.

Nicholas Harlen · Answer 2 · 2020-06-24T04:39:51+0000

Answer/Explanation:

Differences in temperature in the mantle cause convection currents. If it weren't for these convection currents wouldn't exist.

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