Interesting facts about water
- Water is the most common compound found on Earth.
- Four fifths of the Earth’s surface is covered in water.
- 99% of the World’s water cannot be used because it is either saline or is locked up in glaciers and ice sheets.
- Most of the remaining water is present in rocks as groundwater (approx. 0.6%), while just over 0.3% is present in rivers and lakes.
- Our bones contain about 72% water, our kidneys about 82% and our blood is about 90% water.
- Each of us need an intake of about 2 litres of water per day. This water may be taken as part of our food or drink.
- A person can live about a month without food, but only about a week without water.
- A person uses about 150 litres of clean treated water per day.
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