GK questions about earth's atmosphere
Earth's atmosphere is a very important area for all competitive exams. Let's discuss some important questions from earth's atmospheric layers.
1. Which is the most abundant gas in earth's atmosphere ?
answer: Nitrogen
2. What is the percentage of oxygen in earth's atmosphere ?
answer: 21 %
3. Which is the most abundant noble gas in earth's atmosphere ?
answer: Argon
4. Which is