Desertification in the region is due to agriculture deltas cataracts overgrazing population growth user: the intertropical convergence zone controls river currents has large petroleum deposits influences climate is a hydroelectric plant

Which of there factors contributed most to us westward expansion in the second half of the nineteenth century?

Where does the availability of water pose the greatest problem

Which statements describe cultural influences? florida is bordered by water on three sides. french is spoken in parts of louisiana. forests are cleared to provide space for cattle grazing. male children are encouraged to attend the university. the longest river on the continent is located here. birthdays are celebrated on january 1st. per capita income of northern buckland is more than $100,000.