Shyam bought a pain relieving ointment after seeing it being displayed in the chemist's shop. The ointment tube was packed in a cardboard box. Identify the different levls of packaging of the pain relieving medicine, when it was purchased by Shyam. Also state the functions of packaging.

Explanation

Different of packaging of the pain relieving medicine are:
Ointment tube: Primary Packaging
Cardboard box: Secondary packaging
Functions of packaging