Question

How can submarines use echolocation to tell how close they are to the bottom of the ocean?

Answer 1

Answer:

Submarines can release sound waves.

The sound waves will hit the bottom of the ocean.

The sound waves will be reflected back to the submarine as echoes.

The submarine can use the echoes created by the reflected waves to figure out how far it is from the bottom of the ocean.

Explanation:

Those are from the checklist. The other answer is the simple response.

Answer 2

Answer:

Submarines can release sound waves. These sound waves will hit the bottom of the ocean and be reflected back to the submarine as echoes. The submarine can use these echoes to tell how far it is from the bottom of the ocean.