EXPLANATION TEXT
Rain Fall
Rain is one of the main sources of fresh water for almost all people in the world. It provides suitable conditions for diverse ecosystems. It is also used as hydroelectric power plants and crop irrigation. But, do you know how rain happens?
The rain’s phenomenon is actually what we often call as “water circle.” The concept of the water cycle involves the sun heating the Earth’s surface water and causing the surface water to evaporate. Then the water vapor rises into the Earth’s atmosphere. The water in the atmosphere cools and condenses into liquid droplets. The droplets grow bigger and heavier and fall to the earth as precipitation.
However, not all rain can reach the surface of the earth. Some evaporates while falling through dry air. This is what we call as “virga”, a phenomenon which is often seen in hot, dry desert regions.
Rain is one of the main sources of fresh water for almost all people in the world. It provides suitable conditions for diverse ecosystems. It is also used as hydroelectric power plants and crop irrigation. But, do you know how rain happens?
The rain’s phenomenon is actually what we often call as “water circle.” The concept of the water cycle involves the sun heating the Earth’s surface water and causing the surface water to evaporate. Then the water vapor rises into the Earth’s atmosphere. The water in the atmosphere cools and condenses into liquid droplets. The droplets grow bigger and heavier and fall to the earth as precipitation.
However, not all rain can reach the surface of the earth. Some evaporates while falling through dry air. This is what we call as “virga”, a phenomenon which is often seen in hot, dry desert regions.
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