1) How much of the Earth's surface is covered with water? a) 70% b) 80% c) 60% 2) How much of the water on Earth is good for drinking? a) 50% b) 3% c) 20% 3) How much water do you need to take a bath? a) 80L b) 100L c) 120L 4) How much water would come out of a tap that drips once per second throughout a day? a) 10L b) 2L c) 4L 5) How many people in the world do not have a safe drinking water? a) 1 billion b) 1 million c) 10 million 6) How much of the human body is made up of water? a) 55-65% b) 65-75% c) 45-55% 7) How much water is needed to make 1 ton of paper? a) 1 450 000 L b) 1450 L c) 145 000 L

Water - quiz

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