Question

How deep are ocean trenches ​

Answer 1

Explanation:

The deepest parts of the ocean are found in trenches—at more than 35,000 feet (nearly 11,000 meters), Challenger Deep is a part of the Mariana Trench, where the Pacific Plate is subducting beneath the Philippine Plate

Answer 2

Answer:

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The deepest parts of the ocean are found in trenches—at more than 35,000 feet (nearly 11,000 meters), Challenger Deep is a part of the Mariana Trench, where the Pacific Plate is subducting beneath the Philippine Plate.