Scuba
Scuba is a type of underwater diving in which a diver uses a self-contained underwater breathing apparatus (scuba) to breathe underwater. The scuba typically consists of one or more cylinders containing breathing gas (usually compressed air), a regulator to control the flow of the gas, and a mouthpiece to allow the diver to breathe. Scuba diving allows divers to explore the underwater world and observe marine life up close. It is a popular recreational activity as well as a profession for commercial divers who perform tasks such as underwater welding, construction, and salvage operations.
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