Of the 117 rivers, the Department of Environment reported that in 1997, only 24 rivers were classified as 'clean'. 59 were 'slightly polluted' and 13 'very polluted'. This means there isn't as much clean water available for use as we might have hoped. The state of Selangor has the highest water consumption in the country. Water is a crucial component of every living thing.
Water regulates the Earth's temperature.
It also regulates our body temperature.