Question

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Answer 1

Answer:

1. melting of ice revisable
2. falling of leaves natural
3. bursting of cracker chemical
4. preparing food periodic
5. desirable/undesirable

Explanation:

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Answer 2

Answer:

1. natural, slow, reversible, physical, non-periodic, undesirable/desirable (it depends upon situation)
2. natural, fast, irreversible, Physical, periodic, undesirable
3. man-made, fast, irreversible, chemical, non-periodic, desirable
4. natural, slow, irreversible, chemical, periodic, desirable
5. man-made, fast, irreversible, chemical, non-periodic, desirable

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