Respuesta :

Because it is more accurate, faster, and cheaper than useing lead weights on a line.

ANSWER:

Echo sounding is a better way of mapping ocean floors because this method can be used to measure larger depths of the ocean.

EXPLANATION:

  • This method of mapping, the 'depth of the ocean' uses sound waves to send and receive signals from depths of ocean enabling accurate mapping.
  • The lead weight on line method can also be used for mapping ocean floor but this method is better for up to 50 meters of depth.
  • For greater depths, the lead weight method does not give exact results.
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