1.

At what depth should pit sand be excavated from?

A. 1 – 2 m from bed of water body
B. 1 – 2 m from ground surface
C. 1 – 2 cm from bed of water body
D. 1 – 2 cm from ground surface
Answer» C. 1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 2 cm from bed of water body


Discussion

No Comment Found