Due to ______________ the thrust of a Pitched roof or arch action or wind action on the superstructure causes wall to overturn.

Unequal settlement of the sub-soil

Horizontal movement of the earth

Lateral pressure on the superstructure

Due to ______________ the thrust of a Pitched roof or arch action or w

1.	Due to ______________ the thrust of a Pitched roof or arch action or wind action on the superstructure causes wall to overturn.
A.	Horizontal movement of the earth
B.	Lateral pressure on the superstructure
C.	Unequal settlement of the sub-soil
D.	Atmospheric action
Answer» C. Unequal settlement of the sub-soil