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Slide Notes

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Science

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PRESENTATION OUTLINE

NATURALLY

  • Soil filtration: It traps particles as water runs through the soil layers and it breaks down nutrients and contaminants.
Photo by RLHyde

HUMANLY

  • Boil water to kill any bacteria that may be living in it.
Photo by puliarf

HUMANLY

  • Pump purifier. You pump your water into a tube and then it goes through a series of filters and then comes out and your water is purified.

NATURALLY

  • Wetlands filter water by slowing down its flow so the bad things in the water settle into the sediment.
Photo by 12fh