Cooking of food is an irreversible change.

Circle the odd one out:

Burning of paper, yellowing of leaves, food getting digested, tearing of paper

Circle the odd one out:

inflating a balloon, freezing water into ice, rusting, steam turning into water

Circle the odd one out:

Cutting an apple, cooking food, breaking of a glass, slicing of vegetables

Circle the odd one out:

Freezing water, melting butter, drying clothes, baking cookies.