

MCQOPTIONS
Saved Bookmarks
1. |
Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank |
A. | Only (i) |
B. | (i) and (ii) |
C. | (i) and (iii) |
D. | Only (iii) |
Answer» C. (i) and (iii) | |