In sewage treatment, the detention period allowed for oxidation ponds ranges from _____________ weeks?

A. 1 to 2
B. 4 to 5Correct Answer
C. 9 to 10
D. 15 to 20
Correct Option: B. 4 to 5

This question has been verified by the PakPrep community moderation network for competitive examination accuracy.

HomeCategoriesQuizSaved (0)Profile