Of course they are summer and winter
A desert is perpetual.
most of the biomes except for tundra and desert have all seasonal changes tundra and desert only have 2.
Each desert is different when it comes to climate and seasonal changes. There is no single answer to this question unless you give a specific desert.
Each desert is different so you need to be a bit more specific.
Only Antarctica is a true desert. Most of the Arctic is seasonal sea ice and those few areas of land are mostly considered as tundra.Only Antarctica is a true desert. Most of the Arctic is seasonal sea ice and those few areas of land are mostly considered as tundra.
To have a waterfall, you need a stream or river that runs with water throughout the year. Few occur in the desert. There are waterfalls in the desert but they are seasonal and only flow during rainy seasons or with snow melt from surrounding mountains.
The answer would depend upon which desert you refer to as well as your location in that specific desert. It could range from minus 100 degrees F. to about 150 degrees.
Its mostly desert land. The climate is hot and humid along the west coast. The temperature is affected by seasonal winds on the western mountains. There is desert in the east and you find the climate to be extremely hot.
monsoon
It depends on where and when. There are seasonal winds the blow along the coast and between the Sahara Desert and the coast. However, Algeria does not have windstorms in the coastal areas.
Most of the southwest US is desert with little surface water and rare periods of seasonal "monsoon" type rains. Farm crop plants (unlike desert plants) cannot handle this scarcity of water.
The Kalahari Desert spans several countries in Southern Africa, primarily covering Botswana, Namibia, and South Africa. It also extends into parts of Angola and Zambia. The desert is characterized by its vast sandy expanses, seasonal rainfall, and unique flora and fauna adapted to arid conditions.