The picture illustrates the way in which water passes from the ocean to the air and then to the land during the water cycle. Initially, the process begins with the evaporation of water from the ocean, which contributes about 80% of the total water vapor in the air. As the sun heats the ocean, water vapor rises and condenses forming clouds. Further, these clouds move over the land, where precipitation occurs in the form of rain or snow.
Following precipitation, water collects in lakes and rivers, and some of it infiltrates the ground, becoming groundwater. This groundwater can flow back into the ocean, completing the cycle. Additionally, surface runoff from rainwater also contributes to the flow returning water back to the ocean. A impervious layer prevents water from seeping deeper, directing it towards the ocean.
Moreover, saltwater intrusion can occur, where ocean water moves into freshwater aquifers. Overall, the diagram highlights the continuous movement of water through various stages, revile the significance of ocean, air, and land in the water cycle.