Please extract the characteristics of a desert from this passage and list in bullet format.

Context: A desert is a region of land that is very dry because it receives low amounts of precipitation, often has little coverage by plants, and in which streams dry up unless they are supplied by water from outside the area. Deserts generally receive less than 250 mm of precipitation each year. The potential evapotranspiration may be large but the actual evapotranspiration may be close to zero. Semi-deserts are regions which receive between 250 and 500 mm and when clad in grass, these are known as steppes.

Answer: -Very dry 
-Little coverage by plants