The Nazca plate, named after the Nazca region of southern Peru, is an oceanic tectonic plate in the eastern Pacific Ocean basin off the west coast of South American. The ongoing subduction, along the Peru- Chile trench, of the Nazca Plate under the South American Playe is largely responsible for the Andean Orogeny
Good luck! Hope this helps hun ;)
You can find the elevations by finding the contour interval and each line up count up
Overly Populated. It is the 7th largest country and 2 nd most populated country.