The purest source of water is ____- (a)Groundwater (b)sea water (c)rainwater (d)riverwater Share with your friends Share 0 Ankit Megotia answered this its rain water , but as it comes down it becomes impure . 2 View Full Answer Theertha Sanal answered this I THINK UNDERGROUND WATER . 1 Supurna Sadhukhan answered this rainwater 0
