What feature separates drainage basins?

What feature separates drainage basins?

• A. Drainage divides (topographic highs)
• B. River confluence
• C. Ocean basin boundary
• D. Mountain ranges separating basins

Answer: (A)

Drainage divides separate drainage basins. This boundary follows the highest ground—ridges or mountain crests—so water on one side drains into one river system and water on the other side flows toward a different system. The divide is defined by topography, directing flow downhill. A river confluence is simply where streams meet, not a basin boundary. An ocean basin boundary speaks to seas rather than land drainage. Mountain ranges are a concrete example of a drainage divide, but the general term that describes the separating feature is drainage divides.

Drainage divides separate drainage basins. This boundary follows the highest ground—ridges or mountain crests—so water on one side drains into one river system and water on the other side flows toward a different system. The divide is defined by topography, directing flow downhill. A river confluence is simply where streams meet, not a basin boundary. An ocean basin boundary speaks to seas rather than land drainage. Mountain ranges are a concrete example of a drainage divide, but the general term that describes the separating feature is drainage divides.