Why artificial rain can be caused by throwing common salt on the clouds ?

Explanation

### Step-by-Step Solution:

1. **Understanding Clouds**:
- Clouds are formed by tiny water droplets or ice crystals suspended in the air. They can be described as a colloidal dispersion of water particles in air.

2. **Nature of Colloidal Particles**:
- The water droplets in clouds are colloidal particles that carry a charge. This charge helps keep the droplets dispersed and prevents them from coalescing into larger droplets.

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