Question

Artificial rain is caused by spraying salts on clouds. Give reason

Answer 1

Answer:

Here is your answer

Explanation:

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 am 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 droplets 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.]

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