First, the temperature does not settle down. Daytime, it is too hot. Night time, it is too cold.
Second, There is no water, little food, no anything can be grown up or existed for a long time.
Third, there is amount of dust, sand in the desert.
It is too hot and no water know one can survive in that place
It is too hot, no water and other resourses. It has a higher risk of death. You can build houses and if you build it ; it wouldnt be wood.
why is difficult to survive in a desert
well... Rainfall is rare, weather conditions extreme, and barely any food
bacause it is very very hot