Sagot :
Answer:
Air is mostly gas
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.
Answer:
1st nitrogen
2nd oxyge3rd carbon dioxide
Answer:
Air is mostly gas
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.
Answer:
1st nitrogen
2nd oxyge3rd carbon dioxide