This is an opinionated question...
study submarine procedures and sleep
A submarine is kept at, or close to, surface air pressure.
The submarine is manned by the crew, and crew members are called submariners.
Actually the submarine will not kill any one, but the rockets and torpedo launched from the submarine kill the people.
i think its two but im not sure
i think you mean the 'periscope'.
A submarine.. I don't think that's a very funny joke. Is it a submarine?
ummmm i think its a sailor!
The USS Nautilus, I think :)
370 feet. At least that is what I think.
i think a submarine can stay underwater indefinetly but a submersible can only stay down for a limited time.
The Sea people