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OpenStudy (anonymous):
why the pH of the water of a river is HIGHER (more basic) during the day than during the night. HINT: Trees are surrounding the river.
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OpenStudy (anonymous):
CO2 is absorbed by trees during the day and release during the night~ concentration of CO2 in air is higher at night~ CO2 dissolves in water to form H2CO3 (carbonic acid) thus lowering the pH of the water during night time~
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