Drainage basins are topographically defined, divided from neighboring basins by ridges and highlands that form drainage divides.
1. Select Major Drainage Basins.
2. Zoom to Latin America and Change Projection to Van der Grinten.
3. Show Physical Labels.
What physical feature serves as the drainage divide on the western side of the Amazon River drainage basin?

a) Brazilian Highlands
b) Llanos
c) Cordillera Central (Andes)
d) Patagonia South
e) Pacific Ocean

Why might a single rock layer exhibit different types of sedimentary rocks within it? view available hint(s) why might a single rock layer exhibit different types of sedimentary rocks within it? such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed in a sequence over time. such a rock layer, termed a facies, when traced laterally represents a single depositional environment that formed over time. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed in a sequence over time.