9.  What is the primary raw material used in the production of ceramics?a. Clayb. Iron orec. Aluminumd. Silicon

1. What is the primary raw material used in the production of steel through the basic oxygen process?  a. Iron oreb. Aluminumc. Copperd. Zinc

Select the properties of ceramicsa)High hardnessb)Brittlenessc)High working temperatured)All of the mentioned

Clay minerals are composed of _____.a)waterb)aluminac)all of the mentionedd)magnesiae)silica

Which is NOT a raw material used in the extraction of iron?ACarbon monoxideBLimestoneCAirDHaematite

Categorize the following materials into alloys, ceramics, polymers, and composites. i)bronze, ii) thoria, iii) invar, iv) nylon