Question

how humans measure the deepness of any sea explain in detail. ? ​​

Answer 1

Answer:

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☞︎︎︎The depth of the ocean is calculated by knowing how fast sound travels in the water (approximately 1,500 meters per second).

☞︎︎︎This method of seafloor mapping is called echosounding.

☞︎︎︎Echosounders can use different frequencies of sound to find out different things about the ocean