The chart illustrates the circulation of water in nature.
Overall, it is clear that there are three primary stages in this process, beginning with water evaporation and the formation of a cloud. The next step shows the water’s journey after falling to the ground, and the process ends with saltwater intrusion.
At the first step of the process, water evaporates into the air, as a result of the sun’s heat. It is estimated that 80% of total water vapour is taken from the ocean. Following this, a cloud is formed by the condensation of water vapour.
In the next stage, the heavy clouds cause rain or snow. Water from the precipitation partly pours into the lakes or is absorbed into the ground. The surface runoff, which is made from rainwater, creates the groundwater and then flows back to the ocean without reaching the impervious layer. The final stage of the process is saltwater intrusion, where water from the ocean moves to the freshwater aquifers.