Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.

1)\(\space \) The sawing of a piece of wood \(\rightarrow \)NO

2)\(\space \)The melting of ice candy \(\rightarrow \)YES

3) \(\space \)Dissolving sugar in water.\(\rightarrow \)YES

4)\(\space \)The cooking of food \(\rightarrow \)NO

5)\(\space \) The ripening of a mango\(\rightarrow \)NO

6)\(\space \)Souring of milk \(\rightarrow \)NO