Waec Model Questions Vol1 2019 Geography Question 13
Practice objective / multiple choice question 13 from the 2019 Waec Model Questions Vol1 Geography examination.
A river drops from an elevation of 450 m at its source to 150 m at its mouth over a straight‑line distance of 30 km. The first 10 km have a gentle slope, the next 15 km a steep slope, and the final 5 km a moderate slope. The gentle slope is half the steep slope and the moderate slope is the arithmetic mean of the gentle and steep slopes. Determine the gradient (in m / km) of the steep section.
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About This Question
This is Waec Model Questions Vol1 2019 Geography Question 13. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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