Why does smoke disperse but clouds seem to stick together?

The particles that make up smoke and clouds have important differences, which explains how they appear.

Why Do Clouds Appear White? - The New York Times

Sniffing out animal DNA in the air could help monitor endangered

Why does smoke disperse but clouds seem to stick together?

The long distance harm to health caused by wildfires

Tiny fish do 'the wave' to scare off predatory birds

Smoke in Sky - The Impact on Astrophotographers! — Cosgrove's Cosmos

Why do clouds 'clump' together? Wouldn't it make much more sense or be much more likely for them to distribute evenly? - Quora

What Do You Get When You Cross a Thunderstorm with a Wildfire? - Eos

Clouds of self-levitating soot might help halt global warming

Why does smoke disperse but clouds seem to stick together?

The Negative Impact of Wildfire Smoke on Mental Health

A Rare Look at an Iridescent Cloud