Rainfall of intensity 20 mm/h occurred over a watershed of area 1 km2 – McqOptions

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1.	Rainfall of intensity 20 mm/h occurred over a watershed of area 1 km2 for duration of six hours. It measures a direct runoff for a volume of 30,000 m3 in the stream. Find the precipitation NOT available for runoff in this case?
A.	5 mm
B.	9 cm
C.	17.5 mm
D.	3 cm
Answer» C. 17.5 mm

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