Asked by Dayana

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?
Answered by bobpursley
Think what you wish, but you are wrong.
Answered by Writeacher
Go to www.answers.com.

Look up SONAR.

Re-think your answer.
Answered by Dayana
Thank you.
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