Gce Model Questions Vol1 2023 Geography Question 12

Practice objective / multiple choice question 12 from the 2023 Gce Model Questions Vol1 Geography examination.

Gce Model Questions Vol1 2023 Geography Objective / Multiple Choice Medium Difficulty
Question 12 GCE_MODEL_QUESTIONS_VOL1 • 2023 • GEOGRAPHY • objective

A river drops a total of 300 m over a length of 120 km. The gradient in the upper 40 km is twice the gradient in the lower 80 km. Assuming the source elevation is 500 m above sea level, calculate (a) the gradient (m km\(^{-1}\)) of the upper and lower reaches, and (b) the elevation of the river 40 km downstream from the source.

Answer Options

A. Upper gradient = 5.00 m km⁻¹, lower gradient = 2.50 m km⁻¹, elevation at 40 km = 300 m
B. Upper gradient = 4.00 m km⁻¹, lower gradient = 2.00 m km⁻¹, elevation at 40 km = 340 m
C. Upper gradient = 3.50 m km⁻¹, lower gradient = 1.75 m km⁻¹, elevation at 40 km = 360 m
Correct Answer D. Upper gradient = 3.75 m km⁻¹, lower gradient = 1.875 m km⁻¹, elevation at 40 km = 350 m
Correct Answer
D
Correct Option:
Upper gradient = 3.75 m km⁻¹, lower gradient = 1.875 m km⁻¹, elevation at 40 km = 350 m

About This Question

This is Gce Model Questions Vol1 2023 Geography Question 12. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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