Question

The deep oceans can be divided into about 20 separate basins by bathymetric features. Is this statement true or false? I know that the deep oceans can be divided by bathymetric features, but I'm not sure about the 20 separate basins. I seem to have found only 12 deep ocean basins,and there are about 50 other basins. Does anyone have any input? Thanks.

I can find no reference to 20 separate bt features. I have tried all day. So I don't know about that part of it either.



http://en.wikipedia.org/wiki/List_of_Oceanic_basins