Waec Model Questions Vol1 2017 Geography Question 1
Practice objective / multiple choice question 1 from the 2017 Waec Model Questions Vol1 Geography examination.
A rectangular agricultural field measures 2 km by 2.5 km (area = 5 km²). During a storm the rainfall intensity is 80 mm/h for 2 hours and the soil infiltration rate is 15 mm/h. The design calls for parallel drainage ditches running along the 2 km side of the field. Each ditch is 1 m wide and may hold water to a maximum depth of 0.30 m. Determine the maximum spacing (in metres, to one decimal place) that can be allowed between two successive ditches so that the runoff from the strip they drain can be safely conveyed.
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About This Question
This is Waec Model Questions Vol1 2017 Geography Question 1. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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