The hikers carried extra oxygen canisters in case the altitude made breathing difficult.

The sailors stored several oxygen candles in the lifeboat before abandoning ship.

molecular oxygen plays a central role in aerobic respiration and many oxidation reactions in the environment.

Runners who ignore rest days may pile up oxygen debts, which can impede recovery and increase injury risk.

The clinic deployed oxygen tents during the heatwave to support elderly patients with chronic respiratory conditions.

Researchers observed that singlet oxygens rapidly quench the fluorescence of the dye under aerobic conditions.

Oxygen difluorides are highly reactive oxidizing agents used in specialized chemical syntheses.

Coastal fisheries have been devastated by recurring oxygen depletions during the summer.

The rescue team documented multiple oxygen deficits in the injured hikers after they were airlifted from the canyon.

The chemists analyzed samples of oxygen fluorides to determine their molecular structures.