Question

lighting in the sky is a :

fast or slow ; reversible or irreversible ; desirable or undesirable ; periodic or non - periodic ; physical or chemical change. ​

Answer 1

Answer:

fast irreversible undesirable periodic physical. change

Explanation:

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Answer 2

Hey, The answer to this question is:-

Lightning in the sky is a:

Fast; irreversible; undesirable; non-periodic; physical..

EXPLANATION

It is a fast change as it comes and goes in a glimpse...

It is irreversible as we cannot reverse it..

It is an undesirable change as no one wants lightning to be it is threatening..

It is a non-periodic change as we cannot say when lightning will be it can come at any time..

It is a physical change as no new substance is formed..

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