China Naming Network - Weather knowledge - In recent days, the smog weather in Changchun has brought great influence on people's lives and travel. Fog is formed by water vapor in the air.
In recent days, the smog weather in Changchun has brought great influence on people's lives and travel. Fog is formed by water vapor in the air.
(1) Fog is a small water droplet formed by condensation of water vapor in the air, which belongs to liquefaction phenomenon.
(2) Diffusion is the movement of molecules, and the formation of smog is due to a large number of extremely fine dust particles, smoke particles and salt particles. Floating evenly in the air, visible to the naked eye, does not belong to the phenomenon of molecular movement.
So the answer is: liquefaction; number