31.
of wastewater is a biological process
which involve microorganism.
(a) Primary treatment
(b) Secondary treatment
(c) Tertiary treatment
Answers
Answered by
4
Answer:
(b) Secondary treatment
Similar questions
English,
4 months ago
Social Sciences,
4 months ago
Computer Science,
4 months ago
Physics,
9 months ago
Science,
9 months ago
English,
1 year ago