Question

how does wind form?​

Answer 1

Answer:

Wind is air in motion. Wind forms when the sun heats one part of the atmosphere differently than another part. This causes expansion of warmer air, making less pressure where it is warm than where it is cooler. Air always moves from high pressure to lower pressure, and this movement of air is wind.

During the day at a coast, the sun heats the air above the land more quickly than the air above water. The warm air over the land expands and rises. Cooler air from the ocean moves toward the land to take the place of the rising air, and makes a "sea breeze" that cools beachgoers in the summer. The image below illustrates the circulation of air.

Answer 2

Answer:

Wind is air in motion. It is produced by the uneven heating of the earth’s surface by the sun. Since the earth’s surface is made of various land and water formations, it absorbs the sun’s radiation unevenly. Two factors are necessary to specify wind: speed and direction

As the sun warms the Earth's surface, the atmosphere warms too. Some parts of the Earth receive direct rays from the sun all year and are always warm. Other places receive indirect rays, so the climate is colder. Warm air, which weighs less than cold air, rises. Then cool air moves in and replaces the rising warm air. This movement of air is what makes the wind blow.

Gases move from high-pressure areas to low-pressure areas. And the bigger the difference between the pressures, the faster the air will move from the high to the low pressure. That rush of air is the wind we experience.

The gases that make up our atmosphere do interesting things as the temperatures change. When gases warm up, the atoms and molecules move faster, spread out, and rise. That’s why steam coming off a pot of boiling water always goes upward. When air is colder, the gases get slower and closer together. Colder air sinks.

Since gases behave differently at different temperatures, that means you also get pockets with high pressure and pockets with low pressure. In areas of high pressure, the gases in the air are more crowded. In low pressure zones, the gases are a little more spread out.

You might think that the warm air would lead to a higher pressure area, but actually the opposite is true. Because warm air rises, it leaves behind an area of low pressure behind it.