Look at the four pictures in the picture to answer the questions. (1) In Figure A, _ _ _ _ is the main cultivated land type in this area, and _ _ _ _ is an important means of transportation in rural a

Look at the four pictures in the picture to answer the questions. (1) In Figure A, _ _ _ _ is the main cultivated land type in this area, and _ _ _ _ is an important means of transportation in rural areas. (1) Figure A is a typical water town landscape in the south of the Yangtze River. Due to abundant precipitation, the main cultivated land type is paddy field, and the main means of transportation is boats, and the slope at the top of the house is steep (convenient for drainage);

(2) Figure B shows the cave dwelling in northern Shaanxi, which is built by using the characteristics of vertical joints in loess, and its characteristics are warm in winter and cool in summer; Due to natural and man-made reasons, the geomorphological characteristics of gullies in this area are criss-crossing;

(3) The living facilities shown in Figure C are heatable adobe sleeping platform, whose main function is to prevent cold or keep warm, which is distributed in the northern area;

(4) Tents or yurts are simple buildings designed by Mongolian herders to adapt to frequent relocation.

So the answer is: (1) paddy field; Ship; (2) caves; Loess Plateau area; (3) keep warm; (4) yurts; Nomadic.