The Life-Sustaining Drink

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The Life-Sustaining Drink Potable water is a life-sustaining drink that is pure enough to be consumed without harming yourself in the process. The demand for fresh water is very high, making potable water a scarce resource. Sources of water supply include: rainfall, ground water and the sea. In most developed countries, it is common to find water supply networks supplying clean water to households. Locally we mainly use reverse osmosis which is a filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane. Unfortunately this consumes vast amounts of energy. This resource must not be wasted and people should appreciate every single drop of it. In Malta we rely on reverse osmosis far too much and new methods to obtain pure water in a more efficient way must be researched.