SCUBA - Self-Contained Underwater Breathing Apparatus 04
SCUBA - Self-Contained Underwater Breathing Apparatus 04 : Etymology: Diving Activities Commonly Associated With Scuba May Include: Type of diving activity Classification aquarium maintenance in large public aquariums commercial, scientific boat and ship inspection, cleaning and maintenance commercial, naval cave diving technical, recreational, scientific diver training professional fish farm maintenance (aquaculture) commercial fishing, e. g. for abalones, crabs, lobsters, scallops, sea crayfish, commercial frogman, manned torpedo military media diving: making television programs, etc. professional mine clearance and bomb disposal, disposing of unexploded ordnance military, naval pleasure, leisure, sport recreational policing/security: diving to investigate or arrest unauthorized divers police diving, military, naval search and recovery diving public safety, police diving search and rescue diving police, naval, public service spear fishing recreational stealthy infiltration military surveys and mapping scientific, recreational scientific diving (marine biology, oceanography, hydrology, geology, palaeontology, diving physiology and medicine) scientific underwater archaeology (shipwrecks; harbors, and buildings) scientific, recreational underwater inspections and surveys (occasionally) commercial, military underwater photography professional, recreational underwater tour guiding professional, recreational underwater tourism recreational Breathing underwater Scuba diver on reef Water normally contains the dissolved oxygen from which fish and other aquatic animals extract all their required oxygen as the water flows past their gills
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