Answer:
North - Gobi
East - Coastal plains; Fertile river valleys
West -Himalayas
Explanation:
North - Gobi
Gobi is the name of a desert in North China.
The northern Areas of China typically has dryer humidity and higher temperature compared to other areas. This is why the large portion of it is occupied by desert.
East - Coastal plains; Fertile river valleys
In contrast to the North, The Eastern part of China contains high amount of water due to its close proximity to sea and rivers. This is the part where agricultural activities in China really thrive.
West -Himalayas
The western part of China mostly occupied by mountain Ranges. In the past, people In China use these mountain terrain to build military bases that can defend them from attacks. Tibetan Plateau, and the Himalayas are probably the two most famous mountains in this region.
