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What do soft water and hard water mean respectively?
What are the characteristics of soft water? What are the characteristics of hard water? Why can't hard water be used to dilute pesticides? Gengzhongbang Planting Network gives a brief introduction below for netizens' reference. Water is divided into hard water and soft water. So-called hard water refers to water such as well water, brackish water, seawater and the like that contains relatively large amounts of calcium, magnesium and other substances, with hardness generally at 1...