1.   Advocates say that large doses of antioxidants protect against cancer by soaking up dangerous oxygen molecules that can damage cells.

2.   The hydrogen molecule binds with the oxygen molecule.

3.   A hemoglobin molecule leaving the left side of the heart carries four oxygen molecules.

4.   Carbon monoxide kills by crowding oxygen molecules out of the bloodstream.

5.   Cerveny said lightning does have beneficial aspects, such as splitting nitrogen molecules from oxygen molecules and fixing the nitrogen into the soil.

6.   One of the worst offenders, she said, is the oxygen molecule, which is split by ultraviolet light into a pair of oxygen atoms that attack everything.

7.   The antioxidants, higher in dark beers, destroy oxygen molecules that kill valuable cell membranes and body proteins.

8.   The atmospheric pressure atop the mountain is about a third of that at sea level, leaving climbers with fewer oxygen molecules to breathe.

9.   The culprit is usually oxygen molecules, which interfere with the magnetic field produced by the scanner, weakening the signal the hydrogen nuclei emit as their axes realign.