I’m really confused about this one. Let’s say I kind of understand the way fungi develop eg. on food – it rots over time and the fungus has like the ‘basis’ to grow on. But on walls? I know they need high humidity and temperature to develop but in the end humidity is just water vapour in the air, so all that’s left is a piece of wall and water, I don’t get where the fungus comes from.
In: Biology
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