Question

________ is a complicated process and costly machinery and technical knowledge
is required. (Smoking , Chilling, Canning)​

Answer 1

Answer:

smoking is a complicated process and costly machinery and technical knowledge

I hope so you like this

Answer 2

● Canning is a complicated process and costly machinery and technical knowledge is required.

● The canning procedure includes putting nourishments in containers or comparative compartments and warming them to a temperature that annihilates smaller scale life forms or microbes that cause nourishment to ruin.

● During this warming procedure air is driven out of the container and as it cools a vacuum seal is framed.