Question

Our mouth is munching machine?

Answer 1

Our mouth have many teeth's like molar pre molar etc. to crunch, munch and bite every type of food. It munches all types of foods (only eatable ) and so it is considered as a munching machine.
This process is known as mastication.

Hope this helps....

Answer 2

our mouth is munching machine    because                                                                  it munches all types of food properly and neatly and sends it into stomach for digestion. so it is called as munching machine.        muching is nothing but grinding and binding food.                     hope it helps