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Card 6
Front
is potable water pure and why is it/not pure?
Back
Card 7
Front
what do the methods used to produce potable water depend on?
Back
Card 8
Front
in the Uk, what provides water with low levels of dissolved substances (fresh water) ?
Back
Card 9
Front
how is the most potable water produced? (3 steps)
Back
Card 10
Front
what are 3 examples of sterilising agents used for potable water?
Back
Card 11
Front
what may have to be done if supplies of fresh water are limited?
Back
Card 12
Front
what are the ways desalination can be done?
Back
Card 13
Front
what do these processes require?
Back
Card 14
Front
what are the causes of producing large amounts of waste water?
Back
Card 15
Front
what does sewage and agricultural waste water require the removal of?
Back
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