Global belts of low and high air pressure are caused by

horizontal air currents
vertical air currents
local air currents
windy air currents

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

If the basis of an isosceles trapezoid have lengths of 11 and 26, what is the length of the median?

By locating production facilities abroad, multinational corporations must pay more for labor true or false