Answer:
19.4: this environment is hot, the environment is all sand, there are many dunes and mountains in the gobi desert
19.3: this environment is extremely cold, most of the environment is grasslands, the region is also filled with mountains.
19.5: this environment is generally cold and dry, the environment here is grasslands everywhere, there are also bodies of water here
19.6: this environment has subtropical monsoon climate, the environment here is also grasslands, the region is boarders with mountains
19.7: this environment has wet and warm climate, the environment here is also grasslands, the region around here is full of extremely tall mountains
Hopefully this helped