A chemical called polypropylene is used in most common plastic products, such as bottles, containers, furniture, automobile parts, and toys. Shown below are some eating utensils made of polypropylene. The method used to make polypropylene involves extracting crude oil from the Earth and heating it. This process results in different types of organic chemicals, some of which are combined to make polypropylene. Polypropylene can then be molded into different shapes to create a wide range of products. Which of the following best describes the process that converts crude oil into polypropylene? A. A natural resource undergoes a chemical process to form a synthetic material. B. A synthetic resource undergoes a physical process to form a natural material. C. A synthetic resource undergoes a chemical process to form a natural material. D. A natural resource undergoes a physical process to form a synthetic material.
