Neco Model Questions Vol1 2021 Geography Question 50
Practice objective / multiple choice question 50 from the 2021 Neco Model Questions Vol1 Geography examination.
In a tectonically active region, the land surface is uplifted at a rate of 0.5 mm yr⁻¹ while river erosion removes material at 1.2 mm yr⁻¹. Starting from a flat plain, how many years (to the nearest hundred years) will it take for the river to incise a valley 30 m deep?
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About This Question
This is Neco Model Questions Vol1 2021 Geography Question 50. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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