01:53:26 The main factors that determine the amount of runoff in an area include the shape of the land, how people use the land,
the type of soil, and: a. amount of soil and vegetation b. amount of rain and vegetation c. amount of rain and amount of soil d. amount of rain and rock formations
since runoff can be caused by little rainfall but in abundance of vegetation then it may decrease since they stop or slow down it's flow but runoff can not be affected by rocks since the velocity may even wear it
