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vredina [299]
3 years ago
9

What did Harry Hess discover that helped prove that tectonic plates are moving?

Geography
1 answer:
Tamiku [17]3 years ago
6 0

Answer:

He realized that the Earth's crust had been moving away on each side of oceanic ridges, down the Atlantic and Pacific oceans, that were long and volcanically active. He published his theory and it came to be called “seafloor spreading.”

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