Either, depending on context. Usually, if used as a noun it is Scuba; as an adjective, as in scuba diver, it is just scuba.
SCUBA was invented for recreational and practical purposes. Some use SCUBA to experience underwater life in person, whereas others use SCUBA to perform underwater tasks, such as welding.
We do... Scuba fins are used a lot in Scuba diving. You might not use scuba fins for, say swimming in a lap pool because they are generally fit around a neoprene boot.
Scuba - self contained underwater breathing apparatus
S.C.U.B.A. is an acronym for Self Contained Underwater Breathing Apparatus. No one should attempt to use scuba gear unless they are trained. While scuba is a safe sport, proper training is required. Check with your local clubs for instruction courses.
The motto of National Academy of Scuba Educators is 'To fundamentally change the way the world learns to use scuba'.
scuba - self contained underwater breathing apparatus
There is a scuba diver power-up which you should use in water-related levels
While scuba is an acronym, it is no longer necessary to capitalize every letter of the word.I would like to upgrade my scuba gear.
this is not possible u need a mod to craft and use a scuba suit.