13, Himalayas, the highest mountain range in the world.

14, Tibet, the highest agricultural planting area in the world.

15, Taklimakan Desert, the desert with the largest proportion of mobile sand dunes in the world.

16, the lowest basin in the world-Turpan basin in Xinjiang.

17, the largest land elevation difference in the world-Mount Everest (8844.43) and Lake Aiding (155 m).

18. The most developed lava landforms in the world-Guangxi, Guizhou and eastern Yunnan.

19, the largest loess landform in the world-China Loess Plateau.

20. Qinghai-Tibet Plateau, the highest and youngest plateau in the world.

2 1, Mount Everest, the thinnest place in the world.

22. Tibet is the highest altitude and largest plateau lake distribution area in the world.