Waec Model Questions Vol1 2018 Geography Question 31

Practice objective / multiple choice question 31 from the 2018 Waec Model Questions Vol1 Geography examination.

Waec Model Questions Vol1 2018 Geography Objective / Multiple Choice Medium Difficulty
Question 31 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • GEOGRAPHY • objective

A V‑shaped river valley has a triangular cross‑section with a base width of 120 m and a depth of 30 m. Over 10 000 years the valley widens by 20 % and deepens by 10 % due to erosion. Assuming the valley extends uniformly, what is the average annual volume of material removed per metre length of the valley (in cubic metres per year, to four decimal places)?

Answer Options

A. 0.0528
Correct Answer B. 0.0576
C. 0.0648
D. 0.0570
Correct Answer
B
Correct Option:
0.0576

About This Question

This is Waec Model Questions Vol1 2018 Geography Question 31. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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