Post Utme Afe Babalola University 2021 Geography Question 37
Practice objective / multiple choice question 37 from the 2021 Post Utme Afe Babalola University Geography examination.
The Earth's atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other gases. What is the approximate percentage of oxygen in the Earth's atmosphere?
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About This Question
This is Post Utme Afe Babalola University 2021 Geography Question 37. It is one of the objective questions from the 2021 Post Utme Afe Babalola University Geography examination.
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