Which of the following statements is not true about polymers?

The polymer Buna-$S$ is made of .....

Which polymer is used in the manufacture of paints and lacquers?

Choose the correct option$(s)$ from the following:
$(1)$ Natural rubber is polyisoprene containing trans alkene units.
$(2)$ Nylon-$6$ has amide linkages.
$(3)$ Cellulose has only $\alpha-D$-glucose units that are joined by glycosidic linkages.
$(4)$ Teflon is prepared by heating tetrafluoroethene in the presence of a persulphate catalyst at high pressure.

Which is a biodegradable polymer?

Name the polymer used in laminating sheets and give the name of monomeric units involved in its formation.