Does "At the 29 August Arab League summit in Khartoum, Nasser's usual commanding position had receded as the attending heads of state expected Saudi King Faisal to lead." contain the correct answer to "What leader assumed a more prominent position due to Nasser's difficulites?"

A: yes

Does "Initially defeated by the Arab Rashidun Caliphate, Iran came under the rule of the Arab caliphates of Umayyad and Abbasid." contain the correct answer to "When did the Arabs invade Iran?"

A: no

Does "There was also a dense network of trade routes in the Mediterranean, along which Muslim countries traded with each other and with European powers such as Venice, Genoa and Catalonia." contain the correct answer to "which crops were brought to europe from the Muslim World?"

A:
no