Question

Is blowing of a balloon reversible or irreversible change? how?

Answer 1

When a balloon filled with air is bursted, the burst balloon cannot be changed back to its original shape and size. So, changing of shape and size on bursting of balloon cannot bereversed back and is hence anirreversible change. b. Rolling of a roti is a reversible change...

Answer 2

It is a reversible change. Because when we release the air inside it, it again approaches to its normal shape and structure.