<span>is the greatest creation of the Constitution</span>
They lacked knowledge about the land and how to use their environment to survive.
Answer:
The right choice is:
Islamic armies conquered major cities to help spread Islam in three continents.
Explanation:
Following the death of the prophet Muhammad in the 7th century, a powerful wave of Arab, Muslim expansion swept across Asia, Europe and Africa. They established caliphates and empires that turned into major centers of learning and study in the next centuries.