Post Utme Lead City University 2017 Geography Question 4
Practice objective / multiple choice question 4 from the 2017 Post Utme Lead City University Geography examination.
The Earth's atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other gases. If a sample of air weighs 100 grams, calculate the weight of oxygen in the sample.
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About This Question
This is Post Utme Lead City University 2017 Geography Question 4. It is one of the objective questions from the 2017 Post Utme Lead City University Geography examination.
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