Baking cake is which change?, Physical , Fast , Chemical , Can physical and chemical change can occur simultaneously ?, Yes , No, Identify irreversible change? Choosee two, Cooking , Flood, Burning of fuel , Mr lying of wax, Can metal expand? , Yes, No, Identify example of reversible change? , Setting milk into curd , Germination of seed, Water cycle .

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恢復自動保存: ?