Classify the following as chemical or physical changes :
`**` cutting of trees.
`**` melting of butter in a pan,
`**` rusting of almirah,
`**` boiling of water to form steam,
`**` passing of electric current, through water and the water breaking down into hydrogen and oxygen gases.
`**` dissolving common salt in water,
`**` making a fruit salad with raw fruits, and
`**` burning of paper and wood.

Explanation

To classify the given changes as either chemical or physical, we need to understand the definitions of each type of change:

1. **Physical Change**: A change that does not alter the chemical composition of a substance. No new substances are formed.
2. **Chemical Change**: A change that results in the formation of new chemical substances. The chemical composition of the original substance changes.

Now, let's classify each of the provided changes step by step:

1. **Cutting of trees**:
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