Watershed Rainfall Volume Calculation
A 1,000-square-mile watershed receives an average monthly rainfall of 2 inches. Using the conversions 1 square mile = 640 acres and 1 foot = 12 inches, calculate the approximate total volume of water in acre-feet that the watershed receives each month.
A
Approximately 106,667 acre-feet
B
Approximately 640,000 acre-feet
C
Approximately 12,000 acre-feet
D
Approximately 106,667 cubic feet
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