Gce Model Questions Vol1 2022 Geography Question 49
Practice objective / multiple choice question 49 from the 2022 Gce Model Questions Vol1 Geography examination.
In a region the annual conversion rates are: 2 % of igneous rock weathers to sedimentary, 1 % of sedimentary metamorphoses to metamorphic, and 0.5 % of metamorphic melts to become igneous. Initially the region contains 500 km³ igneous, 300 km³ sedimentary and 200 km³ metamorphic rock, and the total rock volume remains constant. After a long time the system reaches equilibrium. What proportion (percentage) of the total rock volume is igneous at equilibrium?
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About This Question
This is Gce Model Questions Vol1 2022 Geography Question 49. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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