Question: answer 1.3 only thanks 1.3 Explain in detail the process by which water gets Hard (formation of hard water). (5) 1.4 Using Microsoft excel, determine
1.3 Explain in detail the process by which water gets "Hard" (formation of hard water). (5) 1.4 Using Microsoft excel, determine and plot BOD graphs after x days given ultimate BOD of 280 mg/L. NB make sure you attach excel sheet with all the data inputs and the BOD) vs toranhs (Don't inst nut the oranh which I don't know how you got it, how
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