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The most prominent topographical feature of the ocean discovered in the 1960s was:

User TheMayer
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Answer:

a mountain ridge

Step-by-step explanation:

User Pulsejet
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The most prominent topographical feature of the ocean discovered in the 1960s was the discovery of a mountain ridge which circles the earth, that is called the mid atlantic ridge and is 40,000 km long.

User Rickygrimes
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