Weather means the day-to-day conditions of a particular place. Climate means the average weather conditions of a place over many years. A cloud is a collection of very tiny droplets of water or ice crystals floating in the sky. Wind is the movement of air around the Earth’s surface. The temperature of air tells us how hot or cold the air is. It is a measure of heat in the air. Thermometer is an instrument used to measure temperature (how hot or cold a thing is), usually in the Celsius or Fahrenheit scale. Precipitation is water that falls from the sky to the ground in a solid or liquid form. Rain, snow, hail, and sleet are different forms of precipitation.
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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.