Answer:
Option (B) is correct.
Explanation:
As modern cities are built by occupying the green belt regions.
Religion caused many Arabs to move through the Middle East.
During the 600s CE, an Arab expansion took place all over the Middle East. During these years, Muslim conquests became common, and this led to the establishment of unified Arabic empires, or "caliphates."
Usually when the clouds are heavy because of too much evaporation
