Scuba divers need to decompress after a deep dive so that the oxygen levels in their blood return to normal before returning to the surface. Otherwise they will get the bends. A scuba diver will typically use his or her dive table or computer to figure out how many minutes they must decompress before resurfacing from the dive. Decompression takes place when a diver figures out the amount of time they need to wait at a certain depth under water before they can resurface. They also need to take into account how much air they have left so they can safely wait underneath the water for said period of time. A scuba diver will usually hold onto a drop line and simply breath and wait the allocated amount of time at the prescribed depth and only then safely return to the surface.
scuba divers
It is called "The Bends"
If you wanted to know if this is true, then yes, this is the Bends.
The collective noun is a bubble of scuba divers.
Many people use a SCUBA suit for diving. Sport divers, police divers and some Navy recovery divers.
Free divers do but scuba divers do not need to. Scuba divers take their air with them and would have no need to hyperventilate.
They swim
seebees
There are many reasons for stopping a dive. If you're running low on air, dangerous water conditions, cramps are also common on dives as well as the bends.
In the Water....
Scuba - self contained underwater breathing apparatus
Scuba Bob's Ocean Quest - 2006 Fearless Divers Scuba Rangers 2-7 was released on: USA: 2007