The melting and boiling factors count on pressure. A superb approximation for the speed of alter of the melting temperature with pressure is offered because of the Clausius–Clapeyron relation: Drinking water is usually collected at springs, extracted from synthetic borings (wells) in the bottom, or pumped from lakes and rivers. https://kevalaniru.com/hc-issues-notice-over-plea-to-make-dwarka-plastic-free/