Waec Model Questions Vol1 2023 Geography Question 45
Practice objective / multiple choice question 45 from the 2023 Waec Model Questions Vol1 Geography examination.
A river runs 30 km from its source to its mouth. Elevations are: source 900 m, point A (8 km downstream) 600 m, point B (15 km downstream) 400 m, mouth (30 km downstream) 100 m. (a) Calculate the average gradient of the river over its entire length, expressed as a percentage to two decimal places. (b) Classify the valley as "steep" if the average gradient exceeds 3 %, otherwise "gentle". (c) At what distance from the source does the river's local gradient first fall below 3 %?
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About This Question
This is Waec Model Questions Vol1 2023 Geography Question 45. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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