a: evaporation ~
b: distillation

What:

"water purification: the process of evaporation is like distillation, lifting pure water from the land or oceans, while leaving salts behind. The water cycle acts like a gigantic (and free) water purifier. Rainwater is perfect for drinking and irrigating."


From:
"understanding biodiversity, its benefits and how it is threatened"


Useful?
Writer: Dr J Floor Anthoni
LCC:
Where:
Date: Jan 9 2014 8:07 PM


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