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Sunflowers track the brightness of the sun so around noon they raise their heads. They also, According to the old Farmers Almanac, raise their heads when it is going to rain. No indication is given as to weather this is due to increased humidity, or simply assuming a more upright position when the sky is overcast with no obvious source of light.

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Jimmy Mueller

Lvl 13
3y ago

What else can I help you with?