Plastics are often classified into two categories:
A) foams and vinyls
B) thermoplastics and thermosets
C) flexible and rigid
D) transparent and opaque

Question

Quizplus · Accepted Answer

Thermoplastics can be melted and reshaped multiple times without losing their properties, while thermosets are set in their form and cannot be melted and reshaped. This classification is based on their chemical structure and properties, making thermoplastics and thermosets the best choice for classification.

Plastics Are Often Classified into Two Categories