As shown in the picture, analyze the weather system in a certain place in the northern hemisphere and answer the following questions. (1) This drawing is a schematic diagram of the front of _ _ _ _ _,

As shown in the picture, analyze the weather system in a certain place in the northern hemisphere and answer the following questions. (1) This drawing is a schematic diagram of the front of _ _ _ _ _, and the front symbol of this front is drawn as _ _ _ _ _. (1) According to the moving direction of cold and warm air masses, it can be judged that the front is a warm front.

The front of the warm front is represented by lines and semicircles, which are marked on the side of the cold air mass.

(2) The warm front precipitation mainly occurs before the front.

(3) Before crossing the border, the warm front is controlled by the cold air mass, with low temperature, high air pressure and fine weather, and continuous precipitation often occurs during crossing the border. After crossing the border, controlled by the warm air mass, the temperature rose, the air pressure dropped and the weather turned fine.

So the answer is:

(1) warm front?

(2) Before

(3) Is it sunny with low temperature and high pressure? Continuity? Temperature rise, air pressure drop and fine weather are controlled by a single heating substance.