What do you understand by ppm

1.	What do you understand by ppm
Answer» Explanation: Just as per cent MEANS out of a HUNDRED, so parts per million or ppm means out of a million. Usually describes the concentration of something in water or SOIL. One ppm is equivalent to 1 milligram of something per liter of water (mg/l) or 1 milligram of something per kilogram soil (mg/kg).

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Explanation:

Just as per cent MEANS out of a HUNDRED, so parts per million or ppm means out of a million. Usually describes the concentration of something in water or SOIL. One ppm is equivalent to 1 milligram of something per liter of water (mg/l) or 1 milligram of something per kilogram soil (mg/kg).

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What do you understand by ppm

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