Answer :
Final answer:
Amorphous solids like glass and plastics lack a regular repeating structure, while quartz is a crystalline solid.
Explanation:
An amorphous solid is a solid that lacks a regular repeating structure, such as glass and many plastics. On the other hand, quartz is a crystalline solid due to its regularly repeating three-dimensional structure.
Learn more about Solid Types here:
https://brainly.com/question/39519196