As far as the question that why the Holy Qur’an has...

As far as the question that why the Holy Qur’an has interpreted this seawater as dark water is concerned some reasons can be given to that: (1) The river water containing soil, which falls into the sea and the soil on the shore and under the influence of sediment, the water of the seashore becomes muddy, and that takes the color of dust. (2) In fact when at the time of sunset its rays fall on seawater, it takes up a dark color.

This is the reason that the Holy Qur’an has compared it with muddy water. (3) Water which is more and deeper, under the effect of intensity of blue color, looks black since Zulqarnain saw that sea-water which was much more and it had acquired the state which was almost blackish, that is why the Holy Qur’an has interpreted it as the water mixed with black soil.[^1] [^1]: Tafseer Muraghi, Part 16, Page 17, Tafseer Majmaul Bayan, Vol. 7, Page 490, Tafseer Tantavi, Part 9, Page 200.

Al Munjid , under the words 'Ham'aa' and 'Aien'. Mufradate Raghib, Qisase Qur’an, under the word Zulqarnain. Previous…