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S16:E17 - Polysulphate Fertilizer, Maple Syrup, Batik Printed Fabrics

Polysulphate Fertilizer, Maple Syrup, Batik Printed Fabrics

S16:E17
2019 IMDb

How do they mine a million tonnes of fertiliser from below the sea? And, how do they hand print millions of colourful clothes using the ancient art of batik?

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