Then light-headed from too much oxygen and not feeling the cold at all, he crossed the lawn.

It is also used to protect wine from oxygen and bacteria.

The biologists said the rest may have died from insufficient oxygen or nutrients in their water.

Cut off from oxygen, he began to grow dizzy, his mind a jumble.

Fish may benefit from extra oxygen, so keep the pump running to prevent freezing.

Why are electrons from oxygen especially attracted to other substances?

Photosynthetic cells use the sun's energy to split off water's hydrogen from oxygen.

Water is a compound, made from hydrogen and oxygen (both gases).

"It can also be used to separate hydrogen from oxygen to produce fuel."

I don't know how you might affordably protect the collages from oxygen in the air.