Depends on what you have to travel with.
With a nuclear submarine, you can pretty much keep going until you run out of food. 1-2 Times around the world shouldn't be a problem.
density is high
They can travel as far as they want to, provided they have food and water available.
110m
Only a few feet. Water slows and stops bullets rather effectively.
Can't be answered without knowing the caliber, bullet weight and if it is fresh or salt water.
Well I travel to the water pitcher in my house, so its about 60-80ft
Sound does travel under water otherwise the Humpback would be wasting its time singing!
Jellyfish do not live that far under the water's surface. These jellyfish typically only live a few feet under the water.
me
by swimming
Yes they can!
A submarine is a vessel that can travel both on the surface and under the water.