Subject: The earth’s atmosphere is made up of 78% nitrogen and 21% oxygen.
9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.
The earth’s atmosphere is made up of 78% nitrogen and 21% oxygen.
Subject: The earth’s atmosphere is made up of 78% nitrogen and 21% oxygen.
9 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.