Floating dust weather in Lhasa

Read the weather map of a city in northern China. Taiyuan is located in the northern region. Because Taiyuan is located in the Loess Plateau, with sparse vegetation, rich sandy soil, frequent cold waves and windy weather, and man-made destruction of vegetation, floating dust and sandstorms are prone to occur in dry spring. Sandstorm has seriously affected local industrial and agricultural production and people's daily life. In recent decades, sandstorms have increased in northern and northwestern China.

Therefore, choose: B.