Here's why:

* Hot and Dry Climate: Deserts are defined by their extremely low rainfall, often less than 10 inches per year. This leads to high temperatures during the day and cool temperatures at night.

* Sparse Plant Life: Due to the lack of water, plant life in deserts is very limited. Only plants adapted to survive in extreme conditions, like cacti and succulents, can thrive.

Let me know if you'd like to know more about deserts!