Scientists today calculate the depth to the seafloor using
A) the time it takes for sound waves to travel from a ship to the seafloor and back.
B) seismic waves that reflect from the seafloor.
C) a very long line with a weight attached.
D) trips to the seafloor in modern submersibles.

Question

Quizplus · Accepted Answer

The most common method used by scientists today to calculate the depth to the seafloor is by using sound waves. This method is known as sonar (sound navigation and ranging) and involves sending sound waves from a ship to the seafloor and measuring the time it takes for them to bounce back. By knowing the speed of sound in water, scientists can calculate the depth of the seafloor based on the time it takes for the sound waves to return to the ship.

Scientists Today Calculate the Depth to the Seafloor Using