In urban areas, fine particles caused by dust or pollution often cloud the air close to the ground. Which of the following terms best defines this event? A.
ozone
B.
smoke pollution
C.
haze
D.
acid rain

Please select the best answer from the choices provided
A
B
C
D

The fine particles caused by dust or air pollution which cloud the air close to the ground in urban areas are known as the haze.

Explanation:

The urban areas, unfortunately, more often than not have big problems with pollution. This is due to numerous factors, some of which are the constant construction activities, a lot of traffic, industry, but also blocked airflow. All of these result in high amounts of suspended particles ending up in the air, but because of their weight, they stay low.

The buildup of such particles in the air is known as the haze. It gives the urban areas a foggy and grey appearance, often blocking the sun. The visibility is significantly lowered, while the people suffer a lot because of the heavy pollution, developing problems with their respiratory system, or the ones that already have such often end up hospitalized.

hola:

ef0: daños leves. algunas tejas caídas y otras pequeñas piezas de los tejados arrancadas, algunos daños en canaletas, ramas de árboles rotas y algunos árboles poco profundos arrancados. los tornados que no causan daños visibles (por ejemplo aquellos que se producen en campos abiertos) se valoran siempre como de ef0.

ef1: daños moderados. tejados seriamente despedazados, caravanas y casetas volcadas o seriamente dañadas, perdida de puertas exteriores y ventanas y otros cristales rotos.

ef5: daños increíbles. las casas fuertes pueden quedar arrasadas hasta los cimientos, las estructuras de hormigón armado dañadas críticamente, los edificios altos sufren graves deformaciones estructurales. devastaciones increíbles.

y según esto creo que puedes sacar tus conclusiones. y la verdad la escala ef10 si no se decirte por que no la eh visto o mejor dicho estudiado. espero que te sirva. suerte.