Question

write weather canbe or cannot be reversede​

Answer 1

Explanation:

If the drawing is made with a pencil then it can be erased and we will get the original sheet back. So, we can reverse the change.

But if the drawing is made with colours or pen, then it cannot be erased. Thus the change cannot be reversed.

Answer 2

once the petrol is burnt you cannot get it back...thus it is a irreversible change