Technical scuba divers do, but recreational divers do not.
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.
Scuba divers also wear lead weights on a belt
In the Water....
Scuba divers fall backwards out of a boat because the tank breaks the water so they don't get hurt.
They don't necessarily have to be, I think.
Skin divers are people who dive into the ocean without using special equipment, unlike Scuba divers.
Scuba Bob's Ocean Quest - 2006 Fearless Divers Scuba Rangers 2-7 was released on: USA: 2007
scuba - self contained underwater breathing apparatus
a combination of SCUBA tank(s) attached to a SCUBA regulator
Scuba regulators, also called 'diving regulators', are vital for scuba divers to properly obtain oxygen from a tank. Regulators are available for purchase through diving specialty stores such as Prime Scuba, House of Scuba, and Divers Direct.
Like all adults or older teenagers; scuba divers need English and Maths also physics and scuba diving training. Hope I answered your question xx
It is not SCUBA. Scuba divers are well trained. Accidents happen but considering the number of divers out there scuba is quite safe. Jogging and riding a bicycle would rate much higher.