Sound Part 2
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Sound is produced when an object vibrates. It can travel through solids, liquids, and gases. Sound travels fastest in solids, slower in liquids, and slowest in gases. Light waves and sound waves both carry energy.
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The correct answer is
Remember :
The smallest number is the one that comes first while counting.
Solution :
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.