Biology · Environmental Issues
Arrange the following stages of sewage treatment in the correct sequence: 1. Primary sedimentation 2. Chlorination 3. Grit and debris removal 4. Biological treatment (secondary)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 14 → 1 → 3 → 2
- 23 → 4 → 1 → 2
- 31 → 3 → 2 → 4
- 43 → 1 → 4 → 2✓
Correct answer
3 → 1 → 4 → 2
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Biology?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Environmental Issues MCQs →Want more practice questions on Environmental Issues?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Biology · Environmental Issues