A/an __ is a type of mass movement that occurs when a thin block of soil, rock, and debris separates from the underlying bedrock? a) creep b) landslide c)flow d) eruption

Among the following environmental factors, which does not have a long-term impact on the composition of a region's soil? a. kinds of crops grown b. types of fungi present c. topography of the landscape d. variety of species of mammals e. number of freezes occurring annually