Our world

• Water covers 71 per cent of the Earth's surface.
• 97 per cent of the earth's water is found in oceans.
• Three per cent of the earth's water is fresh.
• More than three quarters of the world's fresh water is not available because it is locked in ice caps, is inaccessible or is polluted.
• If the world's water supply were only 100 litres, our usable amount of fresh water would be only about 0.003 of a litre, enough to fill half a teaspoon.
• One litre of spilled petrol can pollute 750,000 litres of water.

Our body

A person can live a month without food, but only a week without water.

Up to 60 per cent of our body is water:

Brain - 70 per cent water
Blood - 82 per cent water
Lungs - 90 per cent water
Eyes - 95 per cent water

The ability of water to dissolve so many substances allows body cells to use nutrients, minerals and chemicals.