Amajor factor of the dust bowl of the 1930’s was erosion.
a. water
b. wind
c. glacier
d. chemical

The covers all of earth like a thin shell,but it is not a solid sheet of material.it is broken up into several large sections and many smaller ones. fill in the blank.

The pacific islands that lie along tectonic plates may have volcanic activity are uninhabited may not have agricultural economies are located in the tasman sea

Name the three types of population distribution