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.
The more moisture in the air the higher the humidity. Air that holds more moisture than usual is referred to as the dew point. The sun is the driving force behind the weather. A. Weather occurs because the heat of the sun keeps the atmosphere constantly in motion. The position of the sun is what causes temperature changes.