Activity in Earths Atmosphere

The amount of erosion depends entirely on the type of atmosphere that a planet has.
It takes a certain amount of gravity to hold an atmosphere in the place. The size of the planet also depends on how well it can hang onto its atmosphere. Therefore, a massive planet will have no problem keeping its atmosphere together. it is because of this that erosional activity will be able to take place. Erosional activity is based on the atmosphere to a planet. a larger planet, especially one closer to the Sun, will be able to hold its atmosphere together enough to experience erosional activity.