Which data is used to make a sonar map of the ocean floor?(1 point)
Responses
the time it takes an underwater vehicle to reach the ocean floor
the time it takes an underwater vehicle to reach the ocean floor
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