An undesirable gas in domestic water is

Answer Discuss in Comment

CH4

MCQ Box

Home IQ Test General Knowledge Aptitude English Grammer Computer Constitution of Nepal Short Q & A ☰

"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.

Copyright © | 2021 - 2023 | Civil Boss For "MCQ" and Psc Notes. All rights Reserved