Polymers are large molecules made up of repeating subunits called monomers. They can be natural or synthetic. Starch, nylon, wool, and perspex are examples of polymers because they are made up of repeating units of monomers. However, glass is not a polymer because it is not made up of repeating units of monomers. Instead, it is an amorphous solid that is made up of silicon dioxide (SiO2) molecules that are linked together in a random arrangement. Therefore, the correct answer is glass.