because it's hard for scientists to be able to get clear pictures down at that level, 1000's of feet below the surface because the pressure is so high, it's so far down, and it's so dark. when sonar came out scientists were able to know wha...
http://answers.yahoo.com/question/index?qid=20090823151...
Close to the spreading centre the oceanic crust is hotter, so less dense. As a result it floats higher in the mantle below than the older, colder crust further from the spreading centre.
http://answers.yahoo.com/question/index?qid=20090927205...
These look like homework questions to me.......I will answer some for you and give some guidance on ...
http://en.allexperts.com/q/Oceanography-2135/index_1.ht...
The mid-ocean ridge is a continuous mountain range formed from the uplift of thin crustal rocks from rising magma due to decompression melting of mantle material at divergent plate boundaries.
http://wiki.answers.com/Q/Why_is_the_mid_ocean_ridge_a_...
That's a multi-part question that would take a whole semester to just begin to scratch the surface. Or are you asking for help searching? Here's a hint, try enclosing certain phrases in quotes, such as: "earths axis" "affe...
http://answers.yahoo.com/question/index?qid=20080428121...
TOPEX/Poseidon measures the precise shape of the ocean's surface (the surface topography). Bathymetry refers to the relief on the floor of the ocean. The sea floor ridges, canyons, and abyssal plains, that lie up to depths of five miles ben...
http://topex-www.jpl.nasa.gov/science/bathymetry.html
Indefinitely. What we have done so far is just the minimum to understand the ocean, which influences climate in a tremendous way. Every day we have to deal with weather; climate is long-term changes in weather with much bigger magnitude. No...
http://topex-www.jpl.nasa.gov/newsroom/features/200806-...