Question

take a look 18. explain how does static electricity build up in clouds?

Explanation:

Clouds contain water droplets and ice crystals. As they move, there is friction and collision between these particles. This causes electrons to be transferred, resulting in a separation of charges. The lighter, positively - charged particles move to the top of the cloud, while the heavier, negatively - charged particles move to the bottom, building up static electricity.

Answer:

Clouds contain water droplets and ice crystals. Friction and collision during their movement transfer electrons, separating charges. Positive charges move to the top and negative charges to the bottom, building up static electricity.