Almost 99% of Earth's atmosphere is made up of two gases. What are the

1.	Almost 99% of Earth's atmosphere is made up of two gases. What are the two gases and the percents of each?
Answer» ANSWER: Nitrogen 78% and Oxygen 21% Explanation: There is LESS oxygen in the atmosphere because the higher you go the less oxygen there is and oxygen is heavy MOLECULE so it likes staying low.

Almost 99% of Earth's atmosphere is made up of two gases. What are the two gases and the percents of each?

Answer»

ANSWER: Nitrogen 78% and Oxygen 21%

Explanation:

There is LESS oxygen in the atmosphere because the higher you go the less oxygen there is and oxygen is heavy MOLECULE so it likes staying low.