Fish are adapted to live only in water. They may survive for a very limited time in another liquid, but they cannot live permanently in anything other than water.
yes, they can survive in fresh water as well as saline water
they can if the ocean is fresh water
yes human being can't survive without fresh water
yes all puffer fish can survive in fresh water areas
no
No.
It's ability to live in fresh and salt water.
Swim
fresh
yes
Its liquid that we drink to survive
The human body requires at least 2 pints of water or other liquid daily.