Define mass wasting. What is considered to be the most common type of landform? What are the two main driving factors behind mass wasting? One of the most important factors in mass wasting is? 

What are three sources that can produce an excessive amount of water in the soil? What begins as one form of mass wasting can evolve into another. For this reason, it is sometimes difficult to classify them, and the types of mass wasting can vary according to several factors. What are three of these factors? What type of mass wasting moves as slow as one centimeter per year and yet operates every day?