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An Echo Sounder Operates by Measuring the Time Required for ________

Question 16

Multiple Choice

An echo sounder operates by measuring the time required for ________.


A) a sound pulse travels from a ship to the seafloor and back
B) a laser beam to travels from a ship to the seafloor and back
C) a radar pulse to travel from a ship to the seafloor and back
D) a radar pulse to travel from a satellite in orbit around Earth to the sea surface and back

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