What is the scientific explanation of the barrier between the salty and the sweet sea and what does the Qur’an say about this?

Usually rushing from high levels to the sea level, the river fresh water can logically mix with the saline water, but this is not actually what happens!

And He it is Who has given independence to the two seas (though they meet); one palatable, sweet, and the other salty, bitter; and has set a bar and a forbidding ban between them. (Al-Furqan 25:53)

In this episode Dr. Zahgloul El-Naggar reflects on the scientific explanation of the barrier that separates between the saline water and the sweet water with regard to the miraculous water cycle around the earth; what would happen if there were no such oceans and seas cycling the earth?

Watch this to know how wonderful and amazing the build-up of our globe and the universe at large is…