i)
Q – PVC sheet (Polyvinyl chloride)
R – Hard core
S – Foundation
(ii)
- Stop termites rising up the wall
- Prevent moisture / water rising up the wall.
(iii)
- Availability of the materials.
- The use of the building.
- Weather conditions of the place.
- Cost of the materials.
- Level of technology to be used.
marto answered the question on November 6, 2019 at 11:36
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