MCQ
Primary treatment is the
- ✓physical removal of large and smallparticles from sewage
- Bbiological removal of large and smallparticles from sewage
- CBoth $(A) $ and $ (B)$
- Dchemical removal of large and smallparticles from sewage
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I.$ Anabaena
$II.$ Oscillatoria
$III.$ Nostoc
Choose the correct option