Clue: River-pollution problem

Answer: SUDS

Length: 4

---

Similar Clues:

• River pollution problem (SUDS with 4 letters)
• Urban pollution problem (SMOG with 4 letters)
• Pollution problem (e.g. INDUSTRIALWASTE with 15 letters)
• Big city pollution problem (SMOG with 4 letters)
• River near the Great Pyramids (NILE with 4 letters)
• City on the Neosho River (IOLA with 4 letters)
• Words before tree or lazy river (UPA with 3 letters)
• Many a dictator's problem (EGOMANIA with 8 letters)
• River's upper tributaries (HEADWATERS with 10 letters)
• Housing problem (SLUMS with 5 letters)