What are 4 physical properties of oxygen?

Related questions

1. Do we breathe nitrogen?
2. Is liquid oxygen dangerous?
3. What really causes aging?
4. Can humans breathe liquid oxygen?
5. Do divers breathe pure oxygen?
6. Can humans breathe other than oxygen?
7. Does water make oxygen?
8. Can you breathe pure oxygen?
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Tags

1. #solidified
2. #frozen
3. #changes
4. #temperature
5. #tasteless
6. #slightly
7. #color
8. #formed
9. #odorless
10. #bluish
11. #liquid
12. #oxygen
13. #colorless