Science, asked by Ojasnakhale, 1 year ago

Give me answer urgentaly

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Answered by kritanshu
3
Answer:- The main cause of the hardness of water is that water contains calcium and magnesium salt. So, the water becomes hardness.
Answered by karthik8a39
1

The hardness of water is caused by the presence of calcium or magnesium salts in it.

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