After how many years, night soil gives g...
After how many years, night soil gives good quality manure?
Answer» A. 1
View all MCQs in:
Which of the following turbidimeter gives direct readings in ppm
The BOD after the filtration of sewage from the low rate trickling filter is
The concentration of biodegradable organic matter after the septic tank is
The pollution zones in the river are divided into how many types?
How many types of settling are there in the sedimentation tank?
How many types of aerators are commonly used in the treatment of wastewater?
How many types of trickling filters are used in sewage treatment?
How many kg of air will contain one kg of oxygen?
Login to Continue
It will take less than 2 minutes
Continue with Google
Continue with Linkedin
Continue with Twitter