Answer: 1. The expansion of trade
2. The return of Muhammad to Mecca
Step-by-step explanation: They had very good trade because of Mecca. Mecca has the best trading routes because Mecca has so many places around it to trade by. Mecca is also one of the hottest with a 51% humidity. Mecca has a population of 1.535 million. Mecca's birthplace is Muhammad