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Hardness of water is due to:

(A) Oxygen

(B) dissolved substances

(C) Hydrogen

(D) too much of salt

Answers were Sorted based on User's Feedback



Hardness of water is due to: (A) Oxygen (B) dissolved substances (C) Hydrogen (D) to..

Answer / sounak roy

too much of salt

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Hardness of water is due to: (A) Oxygen (B) dissolved substances (C) Hydrogen (D) to..

Answer / guest

( B ) dissolved substances

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Hardness of water is due to: (A) Oxygen (B) dissolved substances (C) Hydrogen (D) to..

Answer / suchi

dissolved substances

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