An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences.
I would venture to say that the country in South America that has the least amount of disposable water would be probably in northern Chile which is a desert ie the Atacama desert which stretches from the Pacific across to the Andes Mts while on the other hand, in southern Chile there is a temperate climate with significant rainfall and considerable disposable water.
Pull factor- it pulls people twords the us
