Gce Model Questions Vol1 2017 Geography Question 31
Practice objective / multiple choice question 31 from the 2017 Gce Model Questions Vol1 Geography examination.
In a region the initial distribution of rock types is \(40\%\) igneous, \(35\%\) sedimentary and \(25\%\) metamorphic. Each year \(2\%\) of the total land area is eroded. The erosion rate for sedimentary rock is twice that for igneous rock and three times that for metamorphic rock. Assuming the rates remain constant, what percentage of the region's land surface is still sedimentary after \(10\) years? Give your answer to the nearest whole percent.
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About This Question
This is Gce Model Questions Vol1 2017 Geography Question 31. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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