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Question 2: Compare and Contrast Earth Diver and ExNihilo (part two) Now Earth Diver is very different from Ex Nihilo. Earth Diver is a common character in various traditional creation myths. Usually a supreme being sends an animal into the primal waves to find bits of sand or mud with which to build habitable land.
For the practice of diving with a rebreather, see rebreather diving. A rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's exhaled breath to permit the rebreathing (recycling) of the substantially unused oxygen content, and unused inert content when present, of each breath. Oxygen is added to replenish the amount metabolised by the user.