Which landforms have a higher population density and why

The lines marked by the letters a, b, and c on the map above represent a. chains of volcanoes b. earthquake fault lines c. thin strips of heavy forests d. major rivers that flow from north to south

Suggest two reasons why irrigation is important for human development of the desert

Acharreadas is a popular mexican thing where people display varying skills of horsemanship much like what events in the united states?