free from floating impurities but may have suspended solids free from dissolved solids but may have colloidal solids free from harmful bacteria but may contain harmless bacteria free from suspended solids but contain dissolved solids
Answer Discuss in Comment
"Scientists dream about doing great things. Engineers do them."
PSC Advertisement ⏩ | Federal PSC | Bagmati PSC | PSC Karnali | PSC Lumbini | PSC Sudurpaschim | PSC Gandaki | PSC State 1.
