Can we reverse the following changes? If yes, suggest the name of the method.
(a) Water into water vapour
(b) Water vapour into water.
(c) Ice into water.
(d) Curd into milk
(a) Water into water vapour – Yes, by condensation water vapour can be converted to water.
(b) Water vapour into the water – Yes, water can be converted to water vapour by evaporation.
(c) Ice into the water – Yes, water can be converted to ice by freezing.
(d) Curd into milk – No, it is an irreversible process.