Water is a precious think in our life.70% of our earth sirface is covered with water but the water for our use is very less.Water we drink should be in contaminated water or pollouted water may cause many diseases like cholera and diarrhea etc.Clean water is very neccessary for our body.It keeps us hidrated through out the day.It helps in metabollic activities in our daily life.So,don't make water dirty and not throw the garbage in it.Thank you!