.Insert the right words. a)develop b) cement c) electricity d) thermoplastics e) are used f)processes j) various natural

1. A variety of materials are used in different products.

2. Extracted materials, such as plastics, alloys and ceramics, are created through the processing of various natural substances.

3. Biological materials are substances that develop as part of a plant or animal.

4. Extracted materials are created through processes that expend a great deal of energy or alter the microstructure of the substances used to make the materials.