China Naming Network - Almanac query - Wuhan smog weather app
Wuhan smog weather app
A. Smog is a big dust particle and a solid substance; Instead of a large number of small water droplets or ice crystals floating in the near-surface air layer; So, A is wrong;
B, the essence of fog is small water droplets, and the essence of haze is small solid particles; So fog and haze are two different weather phenomena; Therefore, B is correct;
C, the essence of fog is small water droplets, and the essence of haze is small solid particles; So fog and haze are two different concepts; So, c is wrong;
D, fog is water vapor in the air, which liquefies into liquid when it is cold; So, d is wrong;
So choose B.