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808lolita 808lolita
wrote...
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11 years ago
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!
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3 Replies
Replies
wrote...
11 years ago
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.
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adrianouanoadrianouano
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11 years ago
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wrote...
11 years ago
Thank you.
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