Final answer:
Bagdad has very low precipitation rates per year primarily due to its location in a subtropical desert biome, which is characterized by extremely low precipitation levels.
Step-by-step explanation:
Bagdad experiences very low precipitation rates per year primarily due to its location in a subtropical desert biome. Subtropical desert biomes are characterized by extremely low precipitation levels. The dry conditions in these areas are caused by a combination of factors such as global wind circulation patterns, descending air conditions, and the location of deserts near 30 degrees north and south latitude. These factors result in less rainfall and contribute to the low precipitation rates in Bagdad.