Water Pollution · NCERT Biology

The ‘Arcata Marsh’ project in California is a famous example of:

  1. Integrated wastewater treatment
  2. Solid waste management
  3. Radioactive nuclear waste disposal methods
  4. Reforestation
Show answer and explanation

Correct answer: Integrated wastewater treatment

The Arcata Marsh project combined conventional sedimentation and filtration with a series of six marshes. The marshes acted as natural filters where plants, algae, and bacteria purified the water of heavy metals and nutrients.

Difficulty: Medium Question 12 of 20

Practice all 20 Water Pollution questions

Keep practicing

More Water Pollution questions