What are the scientific or religious reasons for its water being eternally free from any sort of contamination? Is it a fact that all sins are washed away by a dip in the Ganges?

From time immemorial, Mother Ganges has been associated with sages and saints who
had found immense spiritual benefit by bathing in her waters as well as by drinking it.
Fire can burn all other things, but cannot act upon its own self. Flowing down the
Himalayan ranges which contain many a rare herb that possess disinf… http://bit.ly/cL0uG5