What are Condensation Nuclei?

 

Definition of Condensation Nuclei: Nucleus means a central body around which something may grow, collect or concentrate. Nuclei is the plural, meaning many. These are simply particles (usually dust) in the air/atmosphere that moisture can cling to as it condenses from vapor in the air into liquid water. That means raindrops, which we tend to think of as just droplets of pure water, are actually dripping wet, soaked particles of dust. They come down from the clouds when there's just too much water on the particulate to stay floating on the drafts of air in the upper atmosphere. Extreme Weather Wettest Place on Earth