Hard water
(A) Does not affect the lather formation by soap
(B) Is not unfit for drinking purpose
(C) Pollutes the water stream
(D) All (A), (B) and (C)
(A) Does not affect the lather formation by soap
(B) Is not unfit for drinking purpose
(C) Pollutes the water stream
(D) All (A), (B) and (C)