Every kind. At least the ones anyone on Earth knows of, otherwize, it wouldn't have been discovered, and therefore no one would know about it.
2006-11-21 11:15:05
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answer #1
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answered by Jason 2
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There is mostly nitrogen in Earth's atmosphere, but there is also carbon dioxide, oxygen, and many,many more.
2006-11-21 17:32:24
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answer #2
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answered by Sarai 2
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oxygen, nitrogen, carbon dioxide and millions more i dont know
2006-11-21 16:51:29
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answer #3
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answered by Anonymous
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basically every one you've ever heard of except for synthetic ones.
2006-11-21 16:54:46
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answer #4
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answered by drizzttownz 2
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all of them.
2006-11-21 16:55:58
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answer #5
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answered by Polly 3
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