Question

how the mineral content of the plant known ?

Answer 1

Answer:

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Answer 2

These include calcium, phosphorus, magnesium, sulfur, potassium, chloride and sodium. Trace minerals are essential in much smaller amounts, less than 100 mg per day, and make up less than 0.01% of bodyweight. Essential trace elements are zinc, iron, silicon, manganese, copper, fluoride, iodine and chromium.