FACTOID # 29: 73.3% of America's gross operating surplus in motion picture and sound recording industries comes from California.
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Encyclopedia > Diving activities

Diving in the sense of going underwater, has these purposes.

Type of diving Classed as
archaeology (shipwrecks; harbours and houses sunk by storm or earth movements) scientific
cave diving technical,recreational
civil engineering in harbours, water supply and drainage systems commercial
constructing,testing & maintaining equipment for the oil & offshore construction industries commercial
boat and ship inspection, cleaning and maintenance commercial, naval
demolition and salvage of ship wrecks commercial,naval
fish farm maintenance commercial
fishing, e.g. for pearls, scallops, abalones, crabs, lobsters, sea crayfish commercial
diver training for reward professional
media diving: making television programs, etc professional
harbour clearance and maintenance military
stealthy infiltration military
manned torpedo,frogman military
mine clearance and bomb disposal, disposing of unexploded ordnance military,naval
search and recovery diving commercial
search and recovery by police for evidence and bodies police
rescue diving for underwater casualties police
diving to investigate or arrest unauthorized divers police,military,naval
surveying sea life and freshwater life, marine biology scientific
underwater tourism recreational

Most of the classes of diving listed here, except recreational diving, are some form of professional diving, however some professional diving activities are carried out by volunteer recreational divers.



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