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What causes the seafloor to spread apart at mid-ocean ridges?

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Waves in the ocean pull the plates away from each other.

Earth is growing in size, and the mid-ocean ridges are where the crust has cracked to allow Earth to get bigger.

Earth's magnetic field is so strong it pushes apart iron-filled rocks.

Hot magma rises through the boundary at mid-ocean ridges, creating new rock and pushing apart the plates.

2 Answers

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Answer:

A

Step-by-step explanation:

User Ajay Gautam
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Answer: Earth is growing in size, and the mid-ocean ridges are where the crust has cracked to allow Earth to get bigger.

Step-by-step explanation:

User Mahender Singh
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