Packing includes processes (such as cleaning, drying, preserving) and (1)_________________(such as (2)__________________, metal, (3)__________________ or paperboard, (4)__________________) employed to contain, handle, (5)___________________, and transport an article. The role of packaging is broadening and may include (6)____________________ such as to (7)____________________, assist in promotion, provide machine identification (barcodes, etc.), impart essential or additional information, and help in utilization.