plains are formed by high elavations of water. ur welcome
Austin Lloyd
Westward expansion.
the great american desert
the great american desert
the plains as they are leveled land and fertile.
the great American desert
the Great American Desert
Long term drought.
the introduction of the horse by the Spanish explorers
drought. poor farming techniques. wind. bad combination!
Wind erosion was the cause of soil loss on the great plains in the 1930's. --------------------------------------------------------------------------------------------------------- However to be susceptible to wind erosion the soil had to be exposed and the agent which did this was human farming - the plough.
Wind erosion was the cause of soil loss on the great plains in the 1930's. --------------------------------------------------------------------------------------------------------- However to be susceptible to wind erosion the soil had to be exposed and the agent which did this was human farming - the plough.