Will give a brainlest the common characteristic of all deserts is low annual rainfall hot temperatures simple ecosystems mineral-poor soil

low annual rainfall

Explanation:

Deserts are the arid regions which receives very low annual rainfall as compared to other biomes of the world. The region exhibit higher potential evaporation rate over the rate of precipitation. The deserts are divided into three types depending upon their locations. Subtropical deserts these exhibit hottest climatic conditions and rapid evaporation. Cold winter deserts, the average temperature is cool. Polar deserts form in the polar regions as all the moisture in these areas is locked up by the freezing ice.

The ecosystem of the deserts may vary from simple to complex depending upon the diversity of the living organism, climate conditions and water. The soil of some of the desert is fertile and rich in minerals not every desert exhibit nutrient poor soil.

On the basis of the above explanation, low annual rainfall is the common characteristic of all the deserts.