Post Utme Greenfield University 2017 Geography Question 25
Practice objective / multiple choice question 25 from the 2017 Post Utme Greenfield University 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?
Answer Options
About This Question
This is Post Utme Greenfield University 2017 Geography Question 25. It is one of the objective questions from the 2017 Post Utme Greenfield University Geography examination.
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.