8. By using sound waves, _______ signals allow oceanographers to determine ocean depth. A. radio B. radar C. phone D. sonar

asked Dec 17, 2017 63.0k views

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by SoCal

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D. sonar
It's what the Navy and ocean animals to detect things under water

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Sonar is correct it detects soundswaves underwater

Edwardsharp answered Dec 21, 2017

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