Rain is the
most prominent weather phenomenon. Adequate amount of rain helps life to
sustain on Earth however excess or shortage of rain can cause catastrophe too. For
a long period the science behind the formation of rain was unknown. After the
invention of weather radar it became possible to discover the stages by which
rain is formed. Rain plays a very important role in the agricultural. It also
brings moisture in the atmosphere. Basically rain formation takes place in 3
stages.
Formation of Rain:
Step1: Innumerable air bubbles formed by the foaming of the oceans
continuously burst and thus cause water particles that ejects towards the sky.
These particles are very rich in salt and carried away by winds and rise upward
in the atmosphere. These particles are known as aerosols, they function as
water traps, and form cloud drops by collecting around the water vapor
themselves, which rises from the seas as tiny droplets. Clouds contain huge
numbers of tiny droplets of moisture.
Step 2: The clouds formed from water vapor in first step condenses around
the salt crystals or dust particles in the air. As the water droplets in these
clouds are very small, somewhere around a diameter between 0.01 and 0.02 mm,
the clouds are suspended in the air, and spread across the sky. Thus the sky is
covered with clouds before rain occurs.
