Which term describes a water body that contains water throughout the year except during periods of severe drought?

• A. Perennial Stream
• B. Perennial River
• C. Intermittent Stream
• D. Disappearing Stream

Answer: (B)

Understanding how water bodies are classified by flow duration helps here. A perennial feature has water in it all year in normal conditions; drought can reduce flow or even stop it temporarily, but the typical behavior is continuous presence. That’s why a perennial river fits best: it is a large channel that usually carries water year‑round, with droughts being exceptional. The other terms describe bodies that don’t have water all year—intermittent flows happen only part of the year, and a disappearing or nonstandard term isn’t applicable. So the best label for a water body that contains water throughout the year except during severe drought is perennial river.