Question

Select the correct answer.

Sonar stands for *sound navigation and ranging." what assumption was proved wrong after the invention of sonar?
O A.
The age of the ocean floor is variable.
O B.
The ocean floor is featureless. iS
• C.
The ocean floor is changing.
• D.
The ocean floor is denser than continental crust.

Answer 1

The correct answer is B. The ocean floor is featureless. The invention of sonar proved this assumption to be wrong as sonar technology allows for mapping of the ocean floor and has revealed that it is not featureless but rather has a complex topography with mountains, valleys, and other features.