This refers to a narrow natural bed or channel through which water flows continuously or intermittently throughout the year.

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Multiple Choice

This refers to a narrow natural bed or channel through which water flows continuously or intermittently throughout the year.

This describes a watercourse that is a narrow bed or channel which carries water mainly when it rains, often in arid areas. An arroyo fits this well: a shallow, typically dry creek bed that remains dry most of the time but can fill with water during rainstorms. It’s the term that emphasizes a narrow natural channel whose flow is intermittent rather than a large, perennial stream. The other options describe different kinds of watercourses: a creek is usually a smaller stream that tends to have more regular flow in many regions; an estero refers to a marshy or tidal inlet rather than a narrow channel; a river denotes a large, often year-round flowing watercourse.

This describes a watercourse that is a narrow bed or channel which carries water mainly when it rains, often in arid areas. An arroyo fits this well: a shallow, typically dry creek bed that remains dry most of the time but can fill with water during rainstorms. It’s the term that emphasizes a narrow natural channel whose flow is intermittent rather than a large, perennial stream.

The other options describe different kinds of watercourses: a creek is usually a smaller stream that tends to have more regular flow in many regions; an estero refers to a marshy or tidal inlet rather than a narrow channel; a river denotes a large, often year-round flowing watercourse.

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