Allah's Signs on the Earth After Allah mentioned the higher worlds, He started asserting His power, wisdom and control over the lower parts of the world.Allah said,وَهُوَ الَّذِي مَدَّ الَارْضَAnd it is He Who spread out the earth,made it spacious in length and width.وَجَعَلَ فِيهَا رَوَاسِيَ وَأَنْهَارًاand placed therein firm mountains and rivers,Allah has placed on the earth firm mountains and made rivers, springs and water streams run through it, so that the various kinds of fruits and plants of every color, shape, taste and scent are watered with this water,وَمِن كُلِّ الثَّمَرَاتِ جَعَلَ فِيهَا زَوْجَيْنِ اثْنَيْنِand of every kind of fruit He made Zawjayn Ithnayn,two types from every kind of fruit,يُغْشِي اللَّيْلَ النَّهَارَ He brings the night as a cover over the day.Allah made the day and night pursue each other, when one is about to depart, the other overcomes it, and vice versa. Allah controls time just as He controls space and matter,إِنَّ فِي ذَلِكَ لَايَاتٍ لِّقَوْمٍ يَتَفَكَّرُونَVerily, in these things, there are Ayat for people who reflect.who reflect on Allah's signs and the evidences of His wisdom.Allah said