Which statement correctly distinguishes a perennial water body from an intermittent one?

Which statement correctly distinguishes a perennial water body from an intermittent one?

• A. Perennial water bodies are present except during major droughts; intermittent contain water only during part of the year
• B. Perennial water bodies are always dry; intermittent are always flooded
• C. Perennial water bodies are only in mountains; intermittent only in plains
• D. Perennial water bodies are shown in green; intermittent in red

Answer: (A)

Perennial and intermittent describe how consistently water is present throughout the year. A perennial water body has water year-round, with continuous presence most years and only possibly drying during extreme droughts. An intermittent water body holds water only during part of the year, drying up during dry seasons and filling again when conditions are wetter. The statement that perennial water bodies are present except during major droughts captures the idea of year-round presence with occasional drying, while intermittent water bodies contain water only during part of the year. The other ideas—being always dry, always flooded, limited to certain terrains, or depicted by color—don’t define how these waters behave over time.

Perennial and intermittent describe how consistently water is present throughout the year. A perennial water body has water year-round, with continuous presence most years and only possibly drying during extreme droughts. An intermittent water body holds water only during part of the year, drying up during dry seasons and filling again when conditions are wetter.

The statement that perennial water bodies are present except during major droughts captures the idea of year-round presence with occasional drying, while intermittent water bodies contain water only during part of the year. The other ideas—being always dry, always flooded, limited to certain terrains, or depicted by color—don’t define how these waters behave over time.