Asked by: Anonymous

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They may look light and fluffy, but those big white things floating overhead are pretty hefty. A typical cloud has a volume of around 1km3 and a density of around 1.003kg per m3 – about 0.4 per cent lower than that of the surrounding air, which is why they float. So cranking through the maths, that means that a typical cloud weighs around a million tonnes.


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