Climate is defined as the atmospheric conditions in a region over a long period of time. From year to year the temperature, amount of precipitation, and amount and type of cloudiness may vary. However, climate is averaged over a number of years. On the other hand, weather is defined as the atmospheric conditions in a region over a short period of time. There are three climate zones in the world recognized by scientists. They are the Polar Climate Zone, the Temperate Climate Zone, and the Tropical Climate Zone.
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.