Question

Which of the following are chemical and physical change
a)growt of plant
B)rusting of iron
C)mixi of iron filings and sand
D)cookin of food
E)digesti of food
F) freezing of water
G)burni of candle

Answer 1

Examples of chemical changes are
Growth of plant, Rusting of Iron, Cooking of food, Digestion of food, and burning of candle.

Others are physical changes.