Jan 11, 2018
Water is one of the most important substances on the Earth for the sustenance of life. It has been used since antiquity as a symbol by which to express devotion and purity. Today water resources have been extensively exploited. Our natural heritage (rivers, seas and oceans) has been exploited, mistreated and contaminated due to rapid population, industrialisation, urbanisation, increasing standards of living and various other human activities.