Artificial rain can be caused by spray common salt on the clouds. How?
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Clouds are colloidal dispersion of water particles in air. These water particles carry some charge over them. On spraying oppositely charged colloidal dust or sand particles over a cloud from an aeroplane, the colloidal water particles present in the cloud will get neutralized and as a result they will come closer and will grow in size to form bigger water drops and ultimately will coagulate or precipitate causing artificial rain.
[Coagulation is the process of aggregating together the colloidal particles so as to change them into large sized particles which ultimately settle as a precipitate.]
[Coagulation is the process of aggregating together the colloidal particles so as to change them into large sized particles which ultimately settle as a precipitate.]
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Artificial rain : Cloud consists of charged particle of water dispersed in air. Rain is caused by aggregation of these minute particles. Artificial rain can be done by throwing electrified sand of Agl from aeroplanes, colloidal H2O particle present in cloud will get coagulated by these sand or Agl particles to form bigger water drops causing rain.
Explanation:
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