Question

________is an example of a periodic change.. ​

Answer 1

Explanation:

The hands of clock

Changing of day and night

Answer 2

$\mathsf{changes \: which \: occur \: periodically \: or \: at \: regular \: intervals }$

$\mathsf\red{Example \: :}$ Solar eclipse and lunar eclipse , Day and night are examples for periodic change

$\mathsf{}$

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