When is water safe to drink? - Mia Nacamulli

توضیحات:

View full lesson: https://ed.ted.com/lessons/when-is-water-safe-to-drink-mia-nacamulli Water is refreshing, hydrating, and invaluable to your survival. But c...

لغات کلیدی:

TED, TED-Ed, TED Education, TED Ed, clean water, drinking water, filtration, sedimentation, pollution, sanitation, contamination, disease, disinfection, filt...

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