The above table shows the compositions of the atmosphere of planet X. Which of these gases are present in higher percentages on earth?
A. CO\(_2\) and O\(_2\) B. N\(_2\) and CO\(_2\) C. CO\(_2\), O\(_2\) and N\(_2\) D. O\(_2\) and N\(_2\)
Correct Answer: D
Explanation
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of other gases, too, such as carbon dioxide, neon, and hydrogen.
