Question

multiple choice question
synthetic fibers, ceramics, polymers, artificial foods, and medicines are called ______ materials.

synthetic
naturally - occurring
natural
special

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Explanation:

Synthetic fibers, ceramics, polymers, artificial foods, and medicines are all man - made (synthesized) materials. "Naturally - occurring" and "natural" materials are those that exist in nature without human synthesis. "Special" is not the appropriate term for these types of man - made materials. So the correct term is "synthetic".

Answer:

A. synthetic