cause we have been there?
A bicycle is not a technology that helps us know what the ocean floor is like. Sonar, bathymetry, and remote-operated vehicles are technologies commonly used for mapping the ocean floor.
i just dont know !
so we know what is going on down there!
the ocean sea floor is spreading
They are the same because they both have water on some parts of the land and they both are a part of land on this earth. I hope this gave you a couple answers you are welcome. ~Alanna Lynn Harwick 4/18/13
sand if you go scuba diving you will know
i dont know what is it
At the middle of the ocean and at the top.
I WANNA KNOW TOOOO. omg i hate science class -_____________-
No they are from coal but I don't know where coal comes frim:]
Because water is mostly opaque, and there was a LOT of it between the surface and the ocean floor. Divers were limited to a few hundred feet depth, and it wasn't until the development of the bathysphere and bathyscaphe that people were able to do down deep and LOOK.