Q. Which one of the following plants is effective in reducing water pollution and is also useful for producing biogas?
Answer: Water hyacinth
Notes: Water hyacinth is a weed known for its ability to spread rapidly over water bodies. It is used for cleansing polluted water bodies owing to its remarkable capacity of absorbing pollutants. It was found that chromium-6 levels decreased significantly in water.

This Question is Also Available in:

हिन्दी
Question Source: 📚This question has been sourced from GKToday's "40000+ GK / General Studies MCQs for SSC & State PCS Exams" App Exclusive Course in GKToday Android Application which provides more than 40K General Knowledge and General Studies questions with explanations asked in all Competitive Exams of India. Download the app here.
📌 Question Number: 54 in 11. Pollution and Pollution Control in the above course in App.