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April 20, 2014

Homework Help: Science

Posted by Dayana on Thursday, March 22, 2012 at 8:21pm.

What type of signal is measured in a sonar system to determine the depth of the ocean?

A. absorption of sound waves by underwater features
B. reflection of sound waves by underwater features
C. absorption of electromagnet waves by underwater features
D. reflection of electromagnet waves by underwater features

I think that it's A?

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