$1.$ Define polymers and give examples of natural and synthetic polymers$\mathrm{.}2.$ Explain the significance of polymers in everyday life$\mathrm{.}3.$ Discuss the historical development of polymer science$\mathrm{.}4.$ What are monomers, and how do they contribute to polymerization?$5.$ Explain the concept of molecular weight and its importance in polymer science.