Facts about water

Here are some interesting facts about water:

• About 70% of the human body is water.

• Oceans cover about 75% of the Earth, but ocean water is salty. Therefore most of the water in the world is not drinkable.

• Groundwater may be drinkable, but it is not easy to find groundwater that is clean and safe to drink.

• If water drips from your tap every 10 seconds, you will waste about 315 litres of water a year – enough to fill two baths!

• Having a bath uses about twice as much water as taking a shower. Having a shower instead of a bath can save up to 400 litres a week.

Grammar

Talking about quantities