In low-pressure areas the air particles are farther apart. The air is usually warm and moist and often brings bad weather. Wind is also referred to as air in motion. The differences in both temperature and air pressure on the earth cause the wind to move. The greater the difference in pressure between the two areas, the stronger the wind.
Different winds bring different weather conditions, depending on from which direction they blow.
The purpose of wind is to spread the sun s heat more evenly around the world. Winds do not blow directly from the poles to the equator. Coriolis effect D. Moisture enters the atmosphere in the form of water vapor. Nearly all the vapor comes from water that evaporates from the oceans. Warm air has more moisture in it than cold air.