Neco 2021 Geography Question 21

Practice objective / multiple choice question 21 from the 2021 Neco Geography examination.

Neco 2021 Geography Objective / Multiple Choice Medium Difficulty
Question 21 NECO • 2021 • GEOGRAPHY • objective

A catchment receives a uniform storm delivering \(40\text{ mm}\) of rain over \(3\) hours. The soil infiltration capacity is \(12\text{ mm hr}^{-1}\) for the first \(2\) hours and \(6\text{ mm hr}^{-1}\) thereafter. If the catchment area is \(1.5\text{ km}^{2}\), calculate the total runoff depth and the runoff volume.

Answer Options

A. Runoff depth = 4 mm; Runoff volume = 6,000 m³
B. Runoff depth = 12 mm; Runoff volume = 18,000 m³
C. Runoff depth = 22 mm; Runoff volume = 33,000 m³
Correct Answer D. Runoff depth = 10 mm; Runoff volume = 15,000 m³
Correct Answer
D
Correct Option:
Runoff depth = 10 mm; Runoff volume = 15,000 m³

About This Question

This is Neco 2021 Geography Question 21. It is one of the objective questions from the 2021 Neco Geography examination.

Difficulty level: Medium .

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