For animal that live there no technology is needed. For man to go there and survive, he needs to use special type of submarine called a bathysphere which can withstand the high pressures.
Subduction
An oil rig
That would be Oceanography I believe.
A bathyscaphe is a self-propelled deep-sea diving submersible used for exploring the ocean depths.
I am as deep as the Atlantic Ocean :)
i think that they used was mostly clay to make utensils and other things to help them survive
Simon Fraser was an explorer. During his explorations he used the technology needed to survive and become a successful fur trader.
Well if you do that it can be hard for them to survive because they are so used to the Ocean! I'd rather not do that!
they used the magnifier to launch the band to map the mid-ocean ridge
Robotics is one such technology used today.
A submersible has to be used, as it has been built specially to withstand the tremendous pressure in the deep ocean depths.
they used the magnifier to launch the band to map the mid-ocean ridge