Landslides and avalanches are similar, because they are formed where unstable masses fall down a mountainside under gravity. They are different, because landslides are formed from solid rock or soil, whereas avalanches are formed from snow and ice.
Kidney Cancer actually has 5 different stages in which the cancer develops! There is many different outcomes that will come of these stages. The name for all the stages though is, called AJCC Staging System.
Avalanches are most likely to occur in the alpine regions of France, Switzerland and Austria. However avalanches can occur on any steep slope, considering the factors. Within the U.S, Alaska, Colorado and Utah are the states that avalanches occur most often.