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Title: What piece of evidence supports the theory that volcanic eruptions formed Earth?s early atmosphere? Post by: 808lolita on Jan 6, 2013 A. Volcanoes expel gases with chemical compositions which closely match the ratios of non-photosynthetic gases in air.
B. Volcanoes are clustered near the equator, so their gas output spreads over Earth?s surface. C. Volcanic eruptions are inversely proportional to local atmospheric pressure. D. Volcanoes expel a mixture of gases consisting almost entirely of water vapor and oxygen. Alll answers greatly appreciated! Title: What piece of evidence supports the theory that volcanic eruptions formed Earth?s early atmosphere? Post by: ayeyoneal11 on Jan 6, 2013 you can exclude three of these as nonsense right up front, which leaves you with only one possible correct choice. Don't really need to know much about volcanoes, even, to do that. too simple for me to answer. just use your brain for a minute, you might find it habit-forming and enjoyable.
Title: What piece of evidence supports the theory that volcanic eruptions formed Earth?s early atmosphere? Post by: adrianouano on Jan 6, 2013 Content hidden
Title: Re: What piece of evidence supports the theory that volcanic eruptions formed Earth?s early atmosphe Post by: MarkHolland on Jan 23, 2013 Thank you.
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