Help Me Please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Question Description
1)which gas is present in the greatest amount in our atmosphere?
2)What would happen if our planet had pure oxygen to breath?
3)How do human & animals get the nitrogen they need to build proteins?
4)What is air?
Question Description
1)which gas is present in the greatest amount in our atmosphere?
2)What would happen if our planet had pure oxygen to breath?
3)How do human & animals get the nitrogen they need to build proteins?
4)What is air?