Step 1: Understanding Raw Materials in Pottery.
The primary raw material used in pottery and ceramics is clay. It is molded into the desired shape and then fired in a kiln to achieve hardness and durability.
Step 2: Analysis of options.
- (1) Clay: Correct, clay is the most essential and primary raw material used in pottery and ceramics.
- (2) Sand: Incorrect, sand is used as a tempering agent but not the primary raw material.
- (3) Wax: Incorrect, wax is used for modeling but not as a primary raw material.
- (4) POP: Incorrect, Plaster of Paris is used in molds but is not the primary raw material for pottery.
Step 3: Conclusion.
Thus, the correct answer is (1) Clay.