Maps—(Select three correct answers)
are three-dimensional models of the Earth.
show the relative size of landmarks perfectly.
are flat representations of the entire Earth or some part of it.
show us where different geological features are located.
distort the relative size of landmarks in certain regions, especially ones near the poles.
Oceans are considered major natural geographic barriers because—(Select three correct answers.)
from the earliest days of civilization, people used them as trade routes.
they are so vast.
they tend to isolate civilizations from one another.
they always prevent the civilizations they border from being invaded.
people traveling across them can’t safely drink their water.