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Use hot air balloons to explore weather patterns and properties of air.
Sewage water is recycled for irrigation
Image: John Loo
Chances are you've seen roadsigns that say "Using Recycled Water" and if you look close enough, you might also see pipes painted purple nearby. This water is popular for freeway median irrigation use and on farms. How do we recycle sewage water? Isn't all water recycled? Where does our drinking water come from, and why is this recycled water not suitable for drinking?
Type
Phenomena
Subject
Earth and Space Science
Engineering
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What can we learn about the human impact on Earth from so far away?
Phenomena
