How does the atmosphere protect life on Earth? Check all that apply.It provides oxygen for living things.It prevents Earth from being hit by meteoroids.It allows water to exist as a liquid.It purifies water that falls as snow and rain.It blocks the Sun’s harmful rays.

The atmosphere supplies oxygen, and it causes many meteoroids to burn up before they reach Earth’s surface. Its pressure and heat-trapping gases help keep conditions suitable for liquid water, while the ozone layer blocks much of the Sun’s harmful ultraviolet radiation. The atmosphere does not reliably purify rain or snow; precipitation can contain pollutants.

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