Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 6 (Q.No. 18)

Water Supply Engineering

18.

Pick up the correct statement from the following :

The precipitation during its travel in atmosphere dissolves certain gases

Rain water which percolates through the ground, is free from suspended materials

Under ground water may dissolve minerals and salts present in the earth's layers

Small quantities of iron, calcium and magnesium dissolved in water, may be useful for human health

All the above.

Answer: Option

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