The globe is distinguished from other planets by the presence of water in it, which is the basis of life on Earth. Without water, life would not have existed in the first place. All living creatures on Earth need water, as water is found in nature in oceans, seas, rivers and lakes, which is in a liquid state, and it exists In solid form, such as snow and ice water, and finally, it ascends to the sky in the form of water vapor, i.e. in the gaseous state, but it is necessary to identify the stages that make up the water cycle in nature, and it must be remembered that the water cycle is a continuous and endless cycle and this is a secret life on planet earth.
stages of the water cycle
In this first stage, the presence of sunlight is necessary, and the sun is the heat source necessary for the transformation of water from the liquid state to the gaseous state, that is, when the waters of the seas, oceans and rivers are exposed, or when water spills on the ground, the water turns into steam that rises to the upper layers of the atmosphere, where Hot air currents raise water vapor or air that carries water molecules to the upper atmosphere, but what happens after the water vapor rises to the sky? Where does water vapor go when it is in the atmosphere?
condensation and precipitation phase
This stage is characterized by the presence of the cold heat necessary to transform water vapor in its gaseous state into a liquid state, which is rain water. The cold loses its heat and energy and condenses on the dust and pollen grains carried by the air currents, and thus clouds are formed and in turn when the weight of a drop of water is heavy, it falls in the form of rain due to gravity and falls on the ground again, and sometimes when water drops in the clouds are exposed to very cold heat Falling in the form of snow or grains of hail.
When rain water falls to the ground, as a result of this precipitation, it may fall on the seas and oceans and work to feed them and raise their level, and sometimes they run in the form of torrents that flow into valleys and work to feed the tributaries of flowing rivers, which in turn pour into the waters of the seas and oceans, and also leak into the layers of the earth and gather and nourish Groundwater located within the lower layers of the earth.
Thus, with the presence of water on the earth and the sun in the sky, the processes of evaporation and transpiration continue, and then condensation into rain and snow and its flow on the surface of the earth, where the plants on the ground retain a good amount of water through their leaves, roots and stems, and through the process of transpiration the water comes out on Steam is formed and the water cycle is renewed again.
stages of the water cycle