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Mashcka [7]
3 years ago
11

over the last 250 million years, the world changed from a single land mass to a number of different continents. One reason for t

he change is expanding ocean floors. What causes ocean floors to expand?
Geography
1 answer:
Ghella [55]3 years ago
8 0

It is caused by tectonic plates and the stress that is put on them

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