WBCS.LIVE practice question

Echo sounding is the technique applied to ___

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Record the density of air in the atmosphere
  2. Measure the depth of the sea
  3. Record earthquake waves
  4. Measure the amplitude of sound waves

Correct answer and explanation

Correct answer: Measure the depth of the sea