The recent weather changes in a city are as follows: the weather was refreshing and the temperature was high in the first two days; On the third and fourth days, the amount of clouds gradually increas

The recent weather changes in a city are as follows: the weather was refreshing and the temperature was high in the first two days; On the third and fourth days, the amount of clouds gradually increased, the clouds thickened, and there was rain, snow and windy weather. C

This topic examines the effects of weather systems. This substance reflects the obvious drop of temperature, the increase of air pressure, cloudy days, rainfall and snowfall, and reflects the influence of cold front.