water water boid Flashcards
1
Q
why can’t we drink all of the water in the world?
A
we need to drink freshwater or we would get diseases and it is salty
2
Q
what are the main sources of fresh water
A
resevoirs: collected from mountain streams
wells: collected from udnerground
rivers: cellected from waterworks
3
Q
why is fresh water important
A
it is essential in our lives and machines
4
Q
what percent of fresh water is in antatica?
A
70%
5
Q
how many litres of water is needed to grow all the food for 1 second
A
200 million litres
