Which data is used to make a sonar map of the ocean floor?(1 point)

Question

Responses

the amount of spreading that occurs on the ocean floor
the amount of spreading that occurs on the ocean floor

the amount of light that reaches the ocean floor
the amount of light that reaches the ocean floor

the time it takes for a pulse to bounce from the ocean floor
the time it takes for a pulse to bounce from the ocean floor

the time it takes an underwater vehicle to reach the ocean floor
the time it takes an underwater vehicle to reach the ocean floor

Answer 1

The correct response is:

the time it takes for a pulse to bounce from the ocean floor.

Sonar works by sending sound pulses into the water; the time it takes for the echoes of these pulses to return helps to map the ocean floor's features.