News reports said Adair used about three hundred forty kilograms of nitroglycerine explosive material to pull the oxygen out of the fire.

VOA: special.2009.03.22

One of the oxygen tanks failed to empty normally during the ground test.

VOA: special.2009.07.22

Commander Lovell said later he should have demanded the oxygen tank be replaced.

VOA: special.2009.07.22

The algae take much of the oxygen from the water.

VOA: special.2009.07.28

He says"These songs and singers were the oxygen that fueled my passion to sing."

VOA: standard.2009.11.25

"If you have an imbalance, or literally too much nitrogen and too much phosphorous getting into those systems, you can essentially deplete the oxygen in that water.

VOA: standard.2010.08.04

"The pain is gone. The oxygen really changed my life,"

VOA: standard.2009.12.17

At the time, scientists believed that a person at the top of the mountain would only have enough oxygen to sleep.

VOA: special.2010.06.30

As the service module moved away, they saw for the first time the damage done by the exploding oxygen tank.

VOA: special.2009.07.22

Blood clots can kill if they move to the heart and lungs and stop needed oxygen from reaching those important organs.

VOA: special.2009.07.14

Doctors say that over time the damage interferes with the natural exchange of oxygen and carbon dioxide in the lungs.

VOA: special.2010.06.23

The atmosphere is about twenty-percent oxygen and eighty percent nitrogen from Earth's surface to where space begins at one-hundred-twenty kilometers up.

VOA: special.2011.04.06

Far below sea level, they contain some of the harshest environments on Earth, with no oxygen and no light.

VOA: special.2010.11.10

CPR,or cardiopulmonary resuscitation, can save a life and reduce the risk of brain damage from loss of oxygen.

VOA: special.2009.06.09