Question

Give scientific reason for the following:
1. Melting of wax is a reversible change.
2.
Rotation of the Earth is a periodic change.
3. Cooked food is stored in refrigerator.
4.
Floods in river is a undesirable change.​

Answer 1

Answer:

Digestion of food is a Q irreversible change. ( ) 2. Rusting of iron is a reversible change. ( ) 3. Melting of wax is a reversible change. ( ) 4. Curding of milk ...

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Answer 2

Answer:

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