Hydrologic cycle or water cycle
Explanation:
Hydrologic cycle or water cycle
Is the system in which I continually move through the Earth-atmosphere. I can go through many processes but the most important are evaporation, transpiration, condensation, precipitation, and runoff.
I´m very important because I cover about 70% of the earth´s surface. I provide life and can control the heat by regulating the temperature of the surrounding. Also can drain harmful substances, I can move important minerals through the spheres.
My journey begins in the evaporation. In this process when I´m on the surface of the earth like in the oceans, the sea, the lakes or in rivers bodies. I can absorb energy from the sun and change to vapor.
Once I vaporize into water vapor as I rise up in the atmosphere I go through condensation. At high altitudes since the temperature is low, I start to turn into diminut particles of ice or water droplets. With my other sisters when we came close together we can form fogs and clouds in the sky.
Sometimes I became water vapor from the ice directly without passing through the liquid stage. And this process is known as sublimation. This happens when I´m in the ice sheets of the North Pole or in the south Pole or also in the ice caps on the mountains.
When I am high in the sky in the form of clouds due to temperature or wind changes, also when the air cannot hold me anymore I precipitate. Depending on the temperature I can fell down in the form of rain, snow, drizzle, sleet, and hail.
After I precipitate sometimes I´m absorbed by the soil. I can enter into the process of transpiration. This process is comparable to evaporation is where I change from liquid water into water vapor by the plants. First I´m absorbed by the roots of the plants, then I´m pushed toward the leaves where I´m used in the photosynthesis process. Sometimes I´m moved out of leaves through stomata (extremely tiny openings on leaves) as water vapor.
As I pour down (in any form), it leads to runoff. This is the process where I run over the surface of the earth. When I´m in the snow form also I can melt into water and lead to runoff. As I run over the ground I can move minerals from the top of the soil. I can combine to form channels and then rivers and I can end up in lakes, seas, and oceans.
Sometimes I can go by infiltration. This happens when I move deep into the soil. I seep down to increase the level of the groundwater table.
