March 20, weather 20 14

(1) As can be seen from the figure, the direction perpendicular to the wind tail points to the northwest, which means that the wind blows from the northwest, so the wind direction is the northwest wind; One wind tail represents level 2, and there are three wind tails in the figure, representing wind level 6. (2) As can be seen from the picture, the weather conditions in most areas south of the Yangtze River in China are heavy rain (one rain line represents light rain, two represent moderate rain and three represent heavy rain). (3) From the weather symbol ""in the picture, it can be judged that the special weather in northern North China is sandstorm. In recent years,

So the answer is: (1) northwest wind; 6; (2) heavy rain; (3) sandstorm; Deforestation of forests, grasslands, overgrazing, etc.