How is lightning produced?

Explanation

### Step-by-Step Solution:

1. **Understanding Lightning**: Lightning is a natural phenomenon that occurs during thunderstorms. It is essentially a massive electrical discharge.

2. **Formation of Charges**: Within clouds, various processes cause the separation of electric charges. This can happen due to collisions between water droplets and ice particles, which leads to the accumulation of positive and negative charges.

3. **Charge Separation**: As the storm develops, the top of the cloud typically becomes positively charged, while the bottom becomes negatively charged. This charge separation creates a significant electric field between the cloud and the ground.

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