Question

firecracker exploding is a fast change​

Answer 1

Answer:

Changes which happen quickly, are called fast changes. For example, growth of tree and animal are slow changes. Burst of crackers is a fast change.

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Answer 2

Answer:

true as when we burn the cracker it burns really quickly. also it is a chemical change as it leaves a residue totally different from the cracker which is ash

Explanation:

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