The activated sludge -
(a) contains fertilizing constituents
(b) indicates the degree of aeration
(c) indicates high water content
(d) all of these.
The correct Answer Is
(d) all of these
(a) contains fertilizing constituents
(b) indicates the degree of aeration
(c) indicates high water content
(d) all of these.
The correct Answer Is
(d) all of these