Air protect living things from harmful

The answer would have to be radiation because the air cools us off most times by moving around the radiation to cool it off. If there was no air to cool of the radiation from the sun, we would burn up, but then of course there are atmospheres.

When scientist examine data such as historical documents, they are using the "scientific methods"

She should ice it and put ointment on it. thats what my momma does.