Clouds form in the troposphere, which is the lowest layer of the Earth's atmosphere. This layer is where most weather occurs and where the majority of water vapor resides. The troposphere is characterized by decreasing temperatures with altitude, leading to the condensation of water vapor into clouds.
The troposphere is crucial for the formation of clouds because it contains:
- Water vapor: This is essential for cloud formation, as it condenses into tiny droplets or ice crystals to create visible clouds.
- Condensation nuclei: These tiny particles, like dust, pollen, or sea salt, act as surfaces for water vapor to condense on, facilitating cloud formation.
- Air movement: As air masses rise and cool in the troposphere, they create conditions favorable for cloud formation.
