The speed and direction of the wind . These variables constitute the variables from which weather patterns and climate types are developed. The energy that the earth intercepts from the sun is only about two billionth of its total energy. It is this unequal heating that accounts for the ocean s currents and creates the wind, which transport heat from the tropics to the poles in an attempt to create a balance of energy. The temporal and spatial variations in the amount of solar energy reaching the earth is caused by the motions of the earth relative to the sun and by variations in the earth s surface.
Rotation is the spinning of the earth about it s axis.
This rotation one every 24 hours produces the daily cycle of daylight and darkness. On the other hand the revolution is the movement of the earth in its orbit around the sun. This movement affects the seasons enjoyed by the earth. The variations in temperature are also connected with the distance of the earth and the sun. The shortest distance 147 million kilometer from the sun occurs, on or about the 3rd of January.