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Dive Speak: Learn Scuba Diving Terms, Phrases and Slang

Dive Speak: Learn Scuba Diving Terms, Phrases and Slang

Advanced Open Water: Follow up certification after Open-Water Diver; allows for deeper

Air: A gas mixture containing 21percent oxygen, 78 percent nitrogen, and 1 percent other gasses (mainly argon); compressed air is held in a tank for scuba diving.
2018-05-08
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