air flows from hot regions to colder ones and what you get is wind
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Wind begins as a result of differences in air pressure. When air near the Earth's surface is heated by the sun, it rises and creates a lower pressure area. Cooler air then moves in to fill the void, resulting in the movement of air we feel as wind.
Waves begin when energy is transferred through a medium, such as water or air. Factors that contribute to wave formation include wind speed, duration, and distance over which the wind blows, as well as the size and shape of the body of water.
Erosion begins with the detachment and movement of soil or rock material by natural forces, such as wind, water, or ice. This process can be accelerated by human activities like deforestation, construction, or agriculture.
A wind vane measures wind direction, not wind speed. It is a device that points in the direction from which the wind is blowing. Wind speed is typically measured using an anemometer.
The phrase "east wind, west wind, north wind, south wind" typically refers to all directions of wind. It is used to describe a full range of wind directions rather than a specific meaning.
An anemometer is used to measure velocity and is the spinning part on a weather station. A weather vane is an instrument for showing the direction of the wind. They are typically used as an architectural ornament on the highest point of a building. On a sailboat, the vane at the top of the mast is called a windex.