Por la interacción de la placa oceánica de Nazca con la parte continental de la placa sudamericana.
The answer is A. because it flows from below which is south but from the east upwards. it is going in a diagnole lone from the bottom of the map towards the top starting from the east (left side) to the west (right side)
The answer is 4 is helps you estimate the distance between two places.
Plain - flat or Rolling Land with few changes in elevation
