Question

most physical changes are reversible.justify the statement by giving two examples​

Answer 1

Answer:

Melting of ice: During this change, the water changes from its solid form to liquid form. It can be solidified again. The water remains water in both cases hence this is a reversible change.

Answer 2

Explanation:

Lightning of an electric bulb :- during during this change, electricity is passed through the filament which become white hot and glow but when switch is off, the filament returns to its original shape and condition .

Hence it is totally reversible