Hydrology

أَنزَلَ مِنَ ٱلسَّمَآءِ مَآءً فَسَالَتْ أَوْدِيَةٌۢ بِقَدَرِهَا فَٱحْتَمَلَ ٱلسَّيْلُ زَبَدًا رَّابِيًا ۚ وَمِمَّا يُوقِدُونَ عَلَيْهِ فِى ٱلنَّارِ ٱبْتِغَآءَ حِلْيَةٍ أَوْ مَتَـٰعٍ زَبَدٌ مِّثْلُهُۥ ۚ كَذَٰلِكَ يَضْرِبُ ٱللَّهُ ٱلْحَقَّ وَٱلْبَـٰطِلَ ۚ فَأَمَّا ٱلزَّبَدُ فَيَذْهَبُ جُفَآءً ۖ وَأَمَّا مَا يَنفَعُ ٱلنَّاسَ فَيَمْكُثُ فِى ٱلْأَرْضِ ۚ كَذَٰلِكَ يَضْرِبُ ٱللَّهُ ٱلْأَمْثَالَ

He sends water from the sky that fills riverbeds to overflowing, each according to its measure. The stream carries on its surface a growing layer of froth, like the froth that appears when people melt metals in the fire to make ornaments and tools: in this way God illustrates truth and falsehood- the froth disappears, but what is of benefit to man stays behind- this is how God makes illustrations.

ٱللَّهُ ٱلَّذِى خَلَقَ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضَ وَأَنزَلَ مِنَ ٱلسَّمَآءِ مَآءً فَأَخْرَجَ بِهِۦ مِنَ ٱلثَّمَرَٰتِ رِزْقًا لَّكُمْ ۖ وَسَخَّرَ لَكُمُ ٱلْفُلْكَ لِتَجْرِىَ فِى ٱلْبَحْرِ بِأَمْرِهِۦ ۖ وَسَخَّرَ لَكُمُ ٱلْأَنْهَـٰرَ

It is God who created the heavens and earth, who has sent down water from the sky and with it brought forth produce to nourish you; He has made ships useful to you, sailing the sea by His command, and the rivers too;

وَأَلْقَىٰ فِى ٱلْأَرْضِ رَوَٰسِىَ أَن تَمِيدَ بِكُمْ وَأَنْهَـٰرًا وَسُبُلًا لَّعَلَّكُمْ تَهْتَدُونَ

He has made mountains stand firm on the earth, to prevent it shaking under you, and rivers and paths so that you may find your way,

أَلَمْ تَرَ أَنَّ ٱللَّهَ أَنزَلَ مِنَ ٱلسَّمَآءِ مَآءً فَسَلَكَهُۥ يَنَـٰبِيعَ فِى ٱلْأَرْضِ ثُمَّ يُخْرِجُ بِهِۦ زَرْعًا مُّخْتَلِفًا أَلْوَٰنُهُۥ ثُمَّ يَهِيجُ فَتَرَىٰهُ مُصْفَرًّا ثُمَّ يَجْعَلُهُۥ حُطَـٰمًا ۚ إِنَّ فِى ذَٰلِكَ لَذِكْرَىٰ لِأُو۟لِى ٱلْأَلْبَـٰبِ

Have you not considered that God sends water down from the sky, guides it along to form springs in the earth, and then, with it, brings forth vegetation of various colours, which later withers, turns yellow before your eyes, and is crumbled to dust at His command? There is truly a reminder in this for those who have understanding.