You use Sonar
To find out the ocean`s depth
A 30cm Ruler.
scientist use sound
Metres.
The average depth of the ocean is about 2.5 miles.
4590 Meter.
Scientists know the depth of the ocean by using technology like the Deep Worker or the "Alvin". It takes them to the bottom of the ocean so they can study ocean life. Also ships use sonar (SOund NAvigation and Ranging) to see what the depth of the ocean is.
The average depth of the Indian ocean is I dont know honestly
Depth is a measure of distance between the surface and the ocean floor.
Indian Ocean
ocean depth is a continuous or discrete variable?
The Indian Ocean's depth is 3,890 meters.