Multiple Choice
An echo sounder operates by measuring the time required for a___________ .
A) sound pulse to travel from a ship to the seafloor and back
B) radar beam to travel from a harbor patrol boat to a fuzz- buster on a speeding yacht
C) radar beam to travel from a ship to the seafloor and back
D) light beam to travel from a satellite at a known altitude to the sea bottom and back
Correct Answer:

Verified
Correct Answer:
Verified
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