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Afina-wow [57]
4 years ago
7

Why is maple sap collected in the spring instead of the fall?

Biology
1 answer:
tigry1 [53]4 years ago
8 0
Sap flows when daytime temperatures rise above freezing (32 degrees Fahrenheit / 0 Celsius) and nighttime temperatures fall below freezing.
The rising temperature creates pressure in the tree generating the sap flow.
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