Now that the air contained far less dust and pollen, she could probably stop.

The air contains water in varying quantities depending on weather conditions.

Such air contains energy in the form of latent heat absorbed from the sun.

If the air did not contain carbon dioxide, the planet would be some 20 degrees cooler.

During this time, the air contains large amounts of water vapor.

In particular, the air now contains only about 0.05 per cent of carbon dioxide: a trace indeed.

The air contains more or less water under the vapor state.

The air only contains 68% of the oxygen compared to sea level.

All air contains at least a little water.

The air contained smells similar to those of the flowers in the bedchamber.