While baking a cake, Tina follows these
steps:
(i) Mixing flour and sugar
(ii) Heating the batter to make it rise
(iii) Cooling the baked cake after it is done
Which of these steps involve(s) chemical changes?
A (i) and (ii) only
B (ii) only
C (i) and (iii) only
D (i), (ii) and (iii)
can somebody explain this to me