20 13 65438+ 10/01,Beijing was shrouded in fog, which caused many flights at the Capital Airport to be delayed. Complete the problem accordingly. Question 1: It's foggy here in late autumn and early w

20 13 65438+ 10/01,Beijing was shrouded in fog, which caused many flights at the Capital Airport to be delayed. Complete the problem accordingly. Question 1: It's foggy here in late autumn and early winter.

Question 1:D

Question 2:B

Test analysis:

Question 1: The temperature in Beijing is low in June 1, and there is little precipitation. During the day, the solar radiation is strong, the temperature drops rapidly at night, and the temperature difference between day and night is large. In late autumn and early winter, water vapor is easy to condense, and dust and particulate matter in urban areas are the necessary condensation nuclei of fog.

Problem 2: Heavy fog increases the thickness of the atmosphere, and there are more solid particles in the fog, which increases the weakening and absorption of solar radiation and reduces the visibility of the air.

Comments: This question is less difficult and can be analyzed in combination with the causes of fog formation. Note that the time here is in late autumn and early winter, which is conducive to water vapor condensation; Dust and particles in urban areas are necessary condensation nuclei for fog formation. In addition, this topic can also examine the measures we should take to deal with smog weather, or the adverse effects brought by smog weather.