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サマリー
あらすじ・解説
On Earth, water gets evaporated by the sun from the planet’s surface, and then drops back down from the clouds when it rains. That’s a great source of water, but..is that water safe to drink? We asked environmental researcher Dr Jonathan Sexton to help us find the answer.
Got a question in your bRAIN? Send it to us at BrainsOn.org/contact, and we’ll help filter out the answer.