how are echoes used by engineers and geologist
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Echo sounding is a type of sonar used to determine the depth of water by transmitting sound waves into water. The time interval between emission and return of a pulse is recorded, which is used to determine the depth of water along with the speed of sound in water at the time.
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echoes are used by the engineers to detect flaws in machines.
echoes are also used by geologists to detect underground ores or oil deposits.
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