Which of the following is not a method for disinfection ?
ABoiling
BOzone treatment
CChlorination
DFlocculation
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The pipe joint commonly used in pumping station is:
The line passing through the optical center of the objective and the point of intersection of the cross hair and its continuation is called
The number of reaction component at a hinged support
The presence of .........................causes red colour in water
ബഹുമുഖബുദ്ധി സിദ്ധാന്തം രൂപപ്പെടുത്തിയ മനഃശാസ്ത്രജ്ഞൻ :