Earth's Atmosphere

There are many reasons why Earth's atmosphere keeps Earth very different from the moon and other planets with no atmosphere. One of the reasons are that when a meteoroid strikes Earth it makes a crate. Over time that crate will disappear. This crate will disappear because every living thing on Earth is always moving or changing its chemical compound. However this isn't the case on the moon or another planet with no atmosphere. That crate would stay there till the end of time. Another reason Earth's atmosphere differs from other planets and the moon, is that the atmosphere supplies us with weather unlike the moon and other planets where there isn't any weather. On other planets the weather will stay the same. It will only change through day and night. In conclusion, if Earth's atmosphere didn't exist it would be hard to survive on Earth. There could possibly be no life without it.