An area from which a river system or lake derives its water is called what?

An area from which a river system or lake derives its water is called what?

• A. Basin
• B. Watershed
• C. Drainage Basin
• D. Catchment

Answer: (D)

The training idea is the land area whose rainfall and runoff all flow toward a single outlet, like a river or lake. This area is the catchment, bounded by high ground called a water divide, so every drop within it eventually reaches that outlet. Understanding catchments helps explain how land use, soil, and rainfall influence how much water arrives and how quickly. While related terms like drainage basin and watershed are often used similarly, the wording here points to catchment as the precise term for the area feeding a specific river system or lake, focusing on the land contributing water to that outlet.

The training idea is the land area whose rainfall and runoff all flow toward a single outlet, like a river or lake. This area is the catchment, bounded by high ground called a water divide, so every drop within it eventually reaches that outlet. Understanding catchments helps explain how land use, soil, and rainfall influence how much water arrives and how quickly. While related terms like drainage basin and watershed are often used similarly, the wording here points to catchment as the precise term for the area feeding a specific river system or lake, focusing on the land contributing water to that outlet.