By using sound waves, _______ signals allow oceanographers to determine ocean depth.
A. radio
B. sonar
C. phone
D. radar
By using sound waves, SONAR signals allow oceanographers to determine ocean depth.
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Asked 12/22/2015 3:31:36 PM
Updated 12/23/2015 9:54:55 AM
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jeifunk [12/23/2015 9:54:54 AM]
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