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Question 7State true or false for the following: The evaporation of water is a reversible change. The melting of wax is a chemical change. Rusting iron is an irreversible change. The change of seasons in a year is a periodic change.

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Question 7



State true or false for the following:





  1. The evaporation of water is a reversible change.




  2. The melting of wax is a chemical change.




  3. Rusting iron is an irreversible change.




  4. The change of seasons in a year is a periodic change.







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