Civil Engineering - Water Supply Engineering - Discussion

18. 

Pick up the correct statement from the following :

[A]. The precipitation during its travel in atmosphere dissolves certain gases
[B]. Rain water which percolates through the ground, is free from suspended materials
[C]. Under ground water may dissolve minerals and salts present in the earth's layers
[D]. Small quantities of iron, calcium and magnesium dissolved in water, may be useful for human health
[E]. All the above.

Answer: Option E

Explanation:

No answer description available for this question.

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