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OpenStudy (anonymous):
Which of the following statements is true? The Decca navigation system is used today by the U.S. Coast Guard. SONAR was developed during World War I to track the location of underwater mines. Seismic profiling uses high frequency radio waves to map the surface of the ocean floor. All of the above. None of the above.
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OpenStudy (anonymous):
@rational
OpenStudy (anonymous):
@bohotness
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