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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

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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