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Select all of the answers that apply. what are the two main ingredients in air? oxygen carbon dioxide nitrogen helium hydrogen
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Select all of the answers that apply. what are the two main ingredients in air? oxygen carbon dioxide nitrogen helium hydrogen

User Elmer Dantas
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Carbon dioxide and nitrogen
User Axel Bregnsbo
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Two main ingredients of air: Oxygen(21%) and Nitrogen(78%)
User Ferry Boender
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