The place where a river ends and merges into a larger body of water is called its what?

The place where a river ends and merges into a larger body of water is called its what?

• A. Mouth
• B. Source
• C. Delta
• D. Tributary

Answer: (A)

The main idea here is where a river finishes its journey by joining a larger body of water. That ending point is called the mouth, the place where the river water flows out into the sea, an ocean, or a large lake. A delta can form at the mouth when the river drops its sediment as it slows down near the junction, building a landform, but not every river creates a delta. The river’s source is where it begins upstream, and a tributary is a smaller stream that feeds into the river, not where it ends. So the term that fits this description—where the river ends and merges with a larger body of water—is mouth.

The main idea here is where a river finishes its journey by joining a larger body of water. That ending point is called the mouth, the place where the river water flows out into the sea, an ocean, or a large lake. A delta can form at the mouth when the river drops its sediment as it slows down near the junction, building a landform, but not every river creates a delta. The river’s source is where it begins upstream, and a tributary is a smaller stream that feeds into the river, not where it ends. So the term that fits this description—where the river ends and merges with a larger body of water—is mouth.