HYDROLOGY THE WATER CYCLE

HYDROLOGY THE WATER CYCLE

HYDROLOGY THE WATER CYCLE

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In earlier times people did not know the source of underground water. They thought the water of the oceans, under the effect of winds, was thrust towards the interior of the continents. They also believed that the water returned by a secret passage or the Great Abyss. This passage is connected to the oceans and has been called the ‘Tartarus’, since Plato’s time. Even Descartes, a great thinker of the eighteenth century, subscribed to this view. Till the nineteenth century, Aristotle’s theory was still prevalent. According to this theory, water was condensed in cool mountain caverns and formed underground lakes that fed springs. Today, we have come to know that the rainwater that seeps into the cracks of the ground is responsible for this.

This is described by the Qur’an in the following verses:

{ Do you not see that Allah sends down rain from the sky and makes it flow as springs [and rivers] in the earth; then He produces thereby crops of varying colors; then they dry and you see them turned yellow; then He makes them [scattered] debris. Indeed in that is a reminder for those of understanding.}

AZ-ZUMAR (21)

{ And of His signs is [that] He shows you the lightening [causing] fear and aspiration, and He sends down rain from the sky by which He brings to life the earth after its lifelessness. Indeed in that are signs for a people who use reason.}

AR-RUM (24)

{ And We have sent down rain from the sky in a measured amount and settled it in the earth. And indeed, We are Able to take it away. }

AL‑MUMINUN (18)

No other text dating back 1400 years ago gives such an accurate description of the water cycle.

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