describes how gases regulate earth's surface temperature and keep it habitable

a natural phenomena that releases ashes harmful

chemicals and large amounts of carbon dioxide into the air changing the amounts of greenhouse gases

human activities that contribute to the change into the atmosphere gas

composition

a form of oxygen found in the stratosphere

coldest atmosphere layer

air is very________in the thermosphere

warmest atmosphere layer

cold regions of the outer space extends from the atmosphere

the farthest atmosphere layer