What is the main characteristic of a desert biome?

very little rainfall
Desert biomes are the driest of all the biomes. In fact, the most important characteristic of a desert is that it receives very little rainfall. Most deserts receive less than 300 mm a year compared to rainforests, which receive over 2,000 mm.

What are 3 characteristics that make deserts unique?

Deserts are characterized by low humidity (air moisture), low annual rainfall, and an overall moisture deficit, meaning the rate of evaporation exceeds the rate of rainfall on average.

What are 2 characteristics of a desert?

Most experts agree that a desert is an area of land that receives no more than 25 centimeters (10 inches) of precipitation a year. The amount of evaporation in a desert often greatly exceeds the annual rainfall. In all deserts, there is little water available for plants and other organisms.