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Friday, 3 May 2024, 1:09 AM
Site: OpenLearn Create
Course: Urban Sanitation and Solid Waste Management (UrbanSanWaste_1.0)
Glossary: Glossary
P
pHmeasure of acidity and alkalinity. It has a scale from 0 to 14: pH 7 is neutral, less than 7 is acid and more than 7 is alkaline (6) |