Water is very important in our daily life. we can not live a half day without drinking a water. our body requires so much water in a day and water plays a very major role in our daily life. Water is necessary for all living things because we need water as we need air. Our body is fulfill up to 90% of water. water useful in various ways like water is useful for drinking,water plays a very major role in agriculture without water agriculture is not possible. and with out water our life is not possible.