Why don’t clouds (on Earth or Venus) fall on the surface of planets?

Water droplets or ice floes in a cloud are acted upon by gravity and buoyancy (Archimedes’ force). Compensation of these two forces in air is impossible, and therefore the droplet moves downward. In this case, there is a resistance force of the medium directed upward. With steady motion, the droplet falling speed is low. In the lower warm layers of the atmosphere, a small drop evaporates, and large drops fall on the Earth in the form of rain. In the case of convective air movements, the cloud can exist in the atmosphere for a long time.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.