Why are deserts found on the tropic of cancer?

Deserts are often found along the Tropic of Cancer due to the descending air associated with the Hadley cell circulation. As warm air rises near the equator, it cools and loses moisture, resulting in precipitation. The cooler, dry air then descends around the Tropic of Cancer, creating arid conditions that lead to the formation of deserts. Additionally, the high temperatures and high evaporation rates in these regions contribute to their dryness.