Oxygen has 3 syllables and the stress is on the first syllable.
| # | Sentence | |
|---|---|---|
| 1. | The primary sources of oxygen on the ISS are the Russian-built Elektron Oxygen Generator unit and NASA’s Oxygen Generator System (OGS). | |
| 2. | Oxygen Mask: If extra oxygen masks are needed, the masks will arrive automatically. Pull down the mask and put it over your mouth and nose. Fasten the strap around your head and breathe normally. Put on your own mask before assisting others. | |
| 3. | The oxygen in Earth's atmosphere comes from living things, but oxygen can also be produced by inorganic chemical reactions. | |
| 4. | Oxygen from the air dissolves in water. | |
| 5. | We yawn when we are short of oxygen. | |
| 6. | Oxygen is needed for combustion. | |
| 7. | Without oxygen, all animals would have disappeared long ago. | |
| 8. | This substance is mostly composed of hydrogen and oxygen. | |
| 9. | You cannot burn anything without oxygen. | |
| 10. | Lack of oxygen is fatal to most animals. |