Post Utme Ui 2020 Geography Question 5
Practice objective / multiple choice question 5 from the 2020 Post Utme Ui Geography examination.
The Earth's atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other gases. What is the percentage of oxygen in the atmosphere?
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About This Question
This is Post Utme Ui 2020 Geography Question 5. It is one of the objective questions from the 2020 Post Utme Ui Geography examination.
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