What is the answer to reading in foggy weather?

Please give a definition of "smog" according to the relevant content of the article. Haze 2. What is the interpretation method of the underlined sentence in paragraph [14]? And analyze what its function is. 3. Can the word "main" added in "The formation of smog is mainly caused by a large number of particles suspended in the air and meteorological conditions * * *" be deleted? Why? 4. Which of the following options is not in line with the original intention (

From late autumn to early spring, the lower the temperature, the less water vapor the air can contain, and the easier it is to form smog. B Sulfur dioxide, nitrogen oxides and inhalable particulate matter are the main culprits that aggravate smog weather pollution. C fog is naturally formed, and the relative humidity is saturated when it occurs. Haze is man-made, and the relative humidity is not large when it occurs. D fog itself will not pollute the environment, but if the atmospheric environment that produces fog is in a relatively stable state, pollutants in the air will not easily spread outward, thus causing agglomeration effect and making pollution more and more serious. 5. "With the same breath, * * * with the same responsibility", facing the fog, we should make a difference. So as a middle school student, what kind of responsibility do you think you should take to make a difference? Reference answer 1. A weather phenomenon in which a large number of particles and smoke particles suspended in the air make the air turbid and the horizontal visibility drops below 10 km. 2 a little 3 a little 4B5 a little