Identify the incorrect option from the following.
All the mentioned points are correct.
All the other points mentioned are correct except this. It should be: "Changes that can be undone are reversible change while the changes that can't be undone are irreversible change.”
Evaporation of water to become water vapour is a reversible change as it can be condensed back to water whereas baking bread is irreversible change as baked bread can't be unbaked.
Hence the correct summary will be as follows:
Point 1: Changes are the differences in the state of affairs.
Point 2: Change can be grouped into reversible and irreversible change.
Point 3: Change that can be undone is reversible change and change that can't be undone is irreversible change.
Point 4: There are many ways in which change can be brought.
For e.g. Heating, cooling etc.