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An experiment was set up so that each test tube contained water at a pH of 6.3 and a pH indicator. Test tubes 1 and 2 also contained a common pond autotroph. Carbon dioxide dissolves in water and forms carbonic acid. After three days the four test tubes were found to have these results.What conclusion can be drawn from test tube 1 and test tube 2

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Answer:

I think there was a picture with the results that you need to attach but regardless we need the results.

Explanation:

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