Particles play a major role in the fecundating quality of the wind; aerosols, with a diameter of one hundredth of a millimetre, are produced when air bubbles burst on the surface of oceans and seas. The wind carries these particles, along with dust from the land, to higher altitudes, where they mix with water vapour and condense into droplets that form clouds. The wind is also responsible for the pollination of plants, carrying pollen from one plant to another of the same species, thus fertilising them. This formation process was recognised centuries ago in the Qur'an.