Explain how artificial rain can be caused by spraying charged dust particles over colloids

Explanation

To explain how artificial rain can be caused by spraying charged dust particles over colloids, we can break down the process into several steps:

### Step 1: Understanding Clouds as Colloids
Clouds are colloidal solutions where tiny water droplets are dispersed in the air. In this case, the water droplets are the dispersed phase, while the air acts as the dispersion medium.

**Hint:** Remember that in a colloid, one substance is dispersed within another, which can be a solid, liquid, or gas.

### Step 2: Charge on Water Droplets
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