Question of the Week - From the Naked Scientists, iTunesU

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Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time... iTunesU

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Question of the Week - From the Naked Scientists, iTunesU navigateright Episode

Question of the Week 19.01.21 - Do plants eat dirt?

Marcus was wondering how trees, such as giant oaks, can grow so huge and not make a hole in the ground. Where does their mass come from if not from the dirt? Jenny Gracie has been digging deep to find an answer, with help from Andrew Weatherall from the National School of Forestry at the University of Cumbria...