Question

Will give brainless if you answer these two question

Answer 1

2:The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

Step-by-step explanation:

Answer 2

First one the answer is it’s colder and the second 78% nitrogen and 21% oxygen