Question

which is one way that earth’s atmosphere supports life? it filters out oxygen. it keeps earth warm. it increases uv radiation. it provides a solid shield.

Explanation:

The Earth's atmosphere contains greenhouse - gases like carbon dioxide and water vapor that trap heat from the sun, keeping the planet warm enough to support life. Oxygen is not filtered out; in fact, it is essential for most life forms. The atmosphere reduces UV radiation through the ozone layer, not increases it. And the atmosphere is gaseous, not a solid shield.

Answer:

It keeps Earth warm.