Write one structural difference between low density polythene and high density polythene.

Shyam went to a grocery shop to purchase some food items . The shopkeeper packed all the items in polythene bags and gave them to Shyam . But Shyam refused to accept the polythene bags and asked the shopkeepers to pack the items in papar bags . He informed the shopkeeper about the heavy penalty imposed by the government for using polythene bags . The shopkeeper promised that he would use paper bags in future in place of polythene bags. Answer the following : (a) Write the values (at least two) shown by Shyam . (b) Write one structural difference between low-density polythene and high-density polythene . (c) Why did Shyam refuse to accept the items in polythene bags ? (d) What is a biodegradable polymer ? Give an example .