Post Utme Abu 2017 Geography Question 14
Practice objective / multiple choice question 14 from the 2017 Post Utme Abu Geography examination.
The Earth's atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other gases. If a sample of air weighs 100g, what is the weight of the oxygen component?
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About This Question
This is Post Utme Abu 2017 Geography Question 14. It is one of the objective questions from the 2017 Post Utme Abu Geography examination.
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