Josef Müller, Willisau
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Water Facts Quiz
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints or clues!
3.15.mp3
3.15.mp3
3.15.mp3
1
The answer is
A
. 97.5% of the water on Earth is
, which humans can’t drink.
2
The answer is
C
. Most
can’t be used because it’s
in the polar ice caps. Only 1% of the world’s fresh water is
for use. That’s 0.01% of Earth’s total water.
3
The answer is
A
. Humans can only live for
without water.
4
The answer is
C
. It takes 42,500 litres of water to produce a kilo of
.
5
The answer is
B
. The recommended minimum
of water per person per day for
,
and
is 50 litres.
6
The answer is
B
. The average
of the Gambia in West Africa uses 4.5 litres of water a day.
Check
Hint
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