Talk about the characteristics of people's housing in the Loess Plateau and why it should be built like this.

1. The typical dwellings in the Loess Plateau are caves, which make full use of the characteristics of dry, loose and straight loess (not easy to collapse);

2. The loess plateau has a high latitude and is cold in winter, so the orientation of houses and doors and windows are mostly facing south, so as to be in the lee of the sun (winter wind);

3. There are many rainstorms in this area, so the location of the house is higher;

4. The quadrangle, another kind of residence, was designed for the same reason.