The green economy. Water systems
Description
We all need it and its much less common than you might think. The earth has plenty of water but only a small fraction of it is fresh and clean. Our rivers are much dirtier than people think so cleaning water for drinking is becoming the focus of numerous scientists. We take some of the dirtiest and make it clean and drinkable right before your eyes.
Runtime
20 minutes
Series
Subjects
Geography
Genre
Database
Alexander Street
Direct Link
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