Q. Which is the main pollutant content of domestic sewage? (Solved)
1. Biodegradable organic matter
2. Biodegradable inorganic matter
3. Flurohydro carbons
4. Dissolve salts
- a. Biodegradable organic matter
1. Biodegradable organic matter
2. Biodegradable inorganic matter
3. Flurohydro carbons
4. Dissolve salts