The desert. Both enviorment and adaptations.

The violent storms seen is the rare rain you'll actually see in a desert. It rains rarely but when it does, they're violent storms that come along with the rain.

The picture of a desert is describing the environment itself.

The goats, and camels are shown because it was a big part of the desert. They are what people usually travel on and often categorized with the desert.

The nomads are shown in this because they migrated through the desert in the sixth century.