Question

What early 1900s development using sound waves made mapping the topography of the ocean floor easier A) magnetometry technology B) sonar technology C) wegener’s technology D) pulse-and-bounce technology

Answer 1

B. Sonar technology arose in 1906, and it uses sound waves to map ocean floors.

Answer 2

The correct answer is option B, SONAR (Sound Navigation And Ranging)

Sonar is an echo technology that works on echo sounding. It uses sound waves sent from the sea to the sea floor where it strikes the sea floor bed and then bounces backs to the ship. Since we know the speed of sound wave, we note the travel time of the it and then multiply it to get the depth of the sea floor bed. Further advance of Sonar technology measure water and map the topography of the ocean floor.