Question

1. The setting of curd is a chemical change.

2. The burning of wood and the cutting of
wood into small pieces are two different
types of changes.​

Answer 1

Answer:

setting of curd is a chemical change because we can't change curd again into milk and new substance curd is formed from milk.......

burning of wood is a chemical change because wood ash is produced and it is a new substance...whereas cutting of wood is a physical change because no new sub is formed here.

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