Answer:
Studies point out that almost 70 percent of the South American continent is made up of hydrographic basins with naturally navigable rivers, which provide real opportunities to become a strategic factor that favors the transportation of merchandise, economic revitalization, and in general, a comprehensive development
Explanation:
B the north European plain provides navigable rivers
1: B
2: C
The others I wish I could explain but I have to go.
Please mark brainiest :)
A rift valley is a linear shaped lowland between several highlands or mountain ranges created by the action of a geologic rift or fault. A rift valley is formed on a divergent plate boundary, a crustal extension or spreading apart of the surface, which is subsequently further deepened by the forces of erosion.
