It depends whether you are in a liferaft or a boat, and what climate you are in, as exposure is your number one enemy. Once you are protected from sun and wind, as long as you are in an area where cold is not your enemy, we turn to water. You will need a means to get fresh water - boats and lifeafts should be equipped with a freshwater maker (can hand-pump an osmosisi type for a few people) or a solar still (its effectiveness will depend on climate/environment). Next you will need food, with fishing being the most likely source. A boat or liferaft expecting to be at sea with survival in mind should have a small handheld fishing reel and line (there is a round plastic one referred to as a Cuban yo-yo) with hooks. Catching the first fish will be the hardest, due to lack of bait.
Now, you can survive for months at sea.
With a submarine or a machine camera called "Alvin"
you can explore the ocean floor by using submarines and other devices, but a submarine can only go a few hundred feet.
Scuba Dive.
Maybe 3 billion.
a trieste or a submersible is used to explore the ocean floor
the answer is a rovs
they r used to explore the ocean by their highly zooming cameras
the ocean salinnity
She did not explore to the Atlantic Ocean. -She flew over it solo (alone ), in those days an incredible achievement.
sub
no
because to find resources
The Current Explore the Healing Powers of the Ocean - 2014 was released on: USA: February 2014
~Alexandra Mackenzie discovered the pacific ocean and artic ocean. I YOU
Indian ocean