Invent a device (made of electrical appliances and scrap materials) that allows you to compare the abundance

Invent a device (made of electrical appliances and scrap materials) that allows you to compare the abundance of spores in the air in the forest, over a plowed field and meadow.

Vacuum cleaner, pump sucks in air. If you put filters in them, you can collect spores in the sucked air on them.

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