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Scientific consensus supports the idea that living organisms require oxygen. Then, a scientist discovers a type of bacteria that metabolizes sulfur instead of oxygen, and thus survives in environments
answered
Feb 2, 2017
Biology
high-school
4
votes
158k
views
What may form where a river enters a large body of water such as a lake?
answered
Sep 15, 2016
Geography
high-school
3
votes
69.6k
views
Complete the equation that is related to the given equation. x – (–6.9) = 42.8 x = 42.8 +
answered
Jan 22, 2015
Mathematics
middle-school
2
votes
187k
views
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