Certain winds appear in certain parts of the earth. for example the trade winds are the winds that flow in the direction of the equator. I've also learned that sense the earth is on an axis it causes the wind to spin in almost a spinning motion. another thing I took away from this would be that prevailing winds blow predominantly through a single general direction across the earths surface. sense the earth is on an axis it puts the heat from the sun at an angle so it distributes across the earths surface.