how is leaf falling from a tree is a chemical change ?

very well tried Amreen.

We can not attach the fallen leaf again on tree.

When a leaf fall from tree it also changes in many thing. sometime colour change, dryness etc. which can not be get back again.

Moreover leaves on tree alive while most of the time it become dead after falling from tree.

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bec. it is not changing its shape and size it would not be a physical change ;so it would be a chemical change

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If a leave fall from a tree can you fix it again.

No right so it is a chemical change.

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