Respuesta :
Answer:
c. Melting Temperature
Explanation:
- Polycrystalline this is a solid material like common salts, ceramics, rocks, and ice that are composed of many crystalline of varying size and orientation.
- Sintering Annealing is the use of heat to remove internal stresses from certain materials
- Melting temperature also known as melting point, is the temperature at which a substance changes from solid to liquid state. Every solid material has a melting point. It is a material property.
- Casting this is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify.
Therefore, the correct option is 'C' Melting Temperature