Revision history of "PH"

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  • curprev 03:30, 21 November 2008Raffi talk contribs 174 bytes +174 New page: Measure of acidity or alkalinity. A lot of garden plants like neutral to slightly acidic soil with pH 5.5 - 7.5. *7 is a neutral pH *above 7 is alkaline *below 7 is acidic