The difference with atmosphere

Earths atmosphere differentiates it from other celestial bodies. The atmosphere itself allows water and gases to stay inside the atmosphere instead of flying off into space. The gases that comprise the atmosphere allow life, by blocking harmful ultraviolet rays and giving the materials needed to make organisms. Also, by having an atmosphere, we have weather, causing erosion and changing the planet. Energy is also restricted and released, causing much less drastic temperature changes than other planets.