The pH value of oxidised sewage is about_____________________?
(A) 1.8
(B) 6.2
(C) 7.3
(D) 13.4
The pH value of oxidised sewage is about_____________________?
(A) 1.8
(B) 6.2
(C) 7.3
(D) 13.4
| Share this... |
Facebook
|
Twitter
|
Linkedin
|
Whatsapp
|
Your email address will not be published. Required fields are marked *