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OpenStudy (zbrownie_brown):
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 (king.void.):
Welcome to openstudy!! Wrong section ;) please close this and post it in the correct section. Thanks! Void!~
OpenStudy (msambergrace):
206.6?
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