Question

Which characteristics define South America's three main physical regions?

(Select the three correct answers.)

(3 points)

Glaciers and high plateaus found only along the eastern coast.

Low, flat coastal plains located next to the seacoast.

Vast desert landscapes that cover all inland territories.

River basins and highlands running in an east-west direction.

Mountains and highlands running in a north-south direction.

A single, uniform biome stretching across the whole continent.

Answer 1

Correct answers:
- Low, flat coastal plains located next to the seacoast.
- River basins and highlands running in an east–west direction.
- Mountains and highlands running in a north–south direction.

Explanation: South America’s three main regions are the Andes (north–south mountains), the central river basins and interior highlands (Amazon and other basins running roughly east–west), and the coastal plains/highlands along the continent’s edges.