Gce Model Questions Vol1 2020 Geography Question 46
Practice objective / multiple choice question 46 from the 2020 Gce Model Questions Vol1 Geography examination.
A river in a mountainous region has deepened its V‑shaped valley from 120 m to 150 m over the past 30 years. During the same period the average discharge increased by 15 %. Assuming the increase in valley depth is directly proportional to the increase in discharge and that the discharge continues to increase at the same annual rate, estimate the expected valley depth after a further 20 years.
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About This Question
This is Gce Model Questions Vol1 2020 Geography Question 46. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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