Which of the following would not be considered an example of an external situation that changes the earth's surface?

a. rock weathering
b. wind erosion
c. volcano eruption
d. water erosion

What types of jobs typically are found in ghetto, inner-city neighborhoods? a. low-wage positions, typically in retail outlets, that require little education b. professional positions with banks, doctors' offices, and other similar businesses c. hourly factory and manufacturing positions d. positions that require advanced education, such as those in financial or technology firms select the best answer from the choices provided.