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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?

  • Science -

    Think what you wish, but you are wrong.

  • Science -

    Go to www.answers.com.

    Look up SONAR.

    Re-think your answer.

  • Science -

    Thank you.

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