Question

changing colour of sky is a chemical change or a physical change​

Answer 1

Answer:

hey mate here is your ans

When you look at the fireworks, you see dazzling sparkles of red, white and blue trickle down in all directions. The explosion of fireworks is an example of chemical change. During a chemical change, substances are changed into different substances. Another words, the composition of the substance changes

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Answer 2

changing colour of sky is a chemical change or a physical change?

=> Chemical change