Plastics are considered to be _____ area because they are made of long chains of repeating small molecules. Plastics are made by humans, so they are categorized as ______ area materials. Even so, manufacturers must use ______ area materials to produce plastics.

Answer 1

Plastics are considered to be polymeric materials because they are made of long chains of repeating small molecules. Plastics are made by humans, so they are categorized as synthetic materials. Even so, manufacturers must use natural materials to produce plastics.