The following picture shows the Xi Banpo site in Shaanxi and Hemudu site in Yuyao, Zhejiang, more than 7,000 years ago, belonging to the earliest prototype of primitive houses in the world. According

The following picture shows the Xi Banpo site in Shaanxi and Hemudu site in Yuyao, Zhejiang, more than 7,000 years ago, belonging to the earliest prototype of primitive houses in the world. According to correlation (1) A, B, A adapt to the hot and rainy south, and B adapt to the cold and dry north.

(2) B (3) B？ Hot and humid in the south? A (4)B

Banpo site is located in Shaanxi, which is cold and dry in winter and hot in summer, and the building insulation effect is good; Hemudu site is located in Zhejiang, with high temperature and rainy climate, and the construction is mainly based on ventilation and cooling. Shaanxi primitive human houses evolved from caves, while Zhejiang primitive human houses evolved from nests. In Figure B, the house is warm in winter and cool in summer, without windows, and the door faces south, which is convenient for lighting.