30 Preface أَوَلَم يَرَ الَّذينَ كَفَروا أَنَّ السَّماواتِ وَالأَرضَ كانَتا رَتقًا فَفَتَقناهُما ۖ وَجَعَلنا مِنَ الماءِ كُلَّ شَيءٍ حَيٍّ ۖ أَفَلا يُؤمِنونَYusuf AliDo not the Unbelievers see that the heavens and the earth were joined together (as one1 unit of creation), before we clove them asunder? We made from water2 every living thing. Will they not then believe?The evolution of the ordered worlds as we see them is hinted at. As man’s intellectual gaze over the physical world expands, he sees more and more how Unity is the dominating note in God’s wonderful Universe. Taking the solar system alone, we know that the maximum intensity of sun-spots corresponds with the maximum intensity of magnetic storms on this earth. The universal law of gravitation seems to bind all mass together. Physical facts point to the throwing off of planets from vast quantities of diffused nebular matter, of which the central condensed core is a sun.About 72 percent of the surface of our Globe is still covered with water, and it has been estimated that if the inequalities of the surface were all levelled, the whole surface would be under water, as the mean elevation of land sphere-level would be 7,000-10,000 feet below the surface of the ocean (Cf. 11:7). This shows the predominance of water on our Globe. That all life began in the water is also a conclusion to which our latest knowledge in biological science points. Apart from the fact that protoplasm, the original basis of living matter, is liquid or semi-liquid and in a state of constant flux and instability, there is the fact that land animals, like the higher vertebrates, including man, show, in their embryological history, organs like those of fishes, indicating the watery origin of their original habitat. The constitution of protoplasm is about 80 to 85 percent water (see also 24:30-31 and 24:45).