The correct statement here is
(2). Over time, the Arab Empire expanded and conquered Byzantine territories in the Middle East and northern Africa
Explanation:
At the time of the bifurcation and eventual fall of the original Roman empire with its fragmentation, the holy Roman empire up west was the empire that was its successor in a sense while the empire that emerged to the east was of the Byzantines who were ruling from Iran.
Their power would be challenged by the caliphate after the formulation of Islam as they would eventually take over all the territory of the Byzantines and force the empire into near submission.
Answer:
Because they are emotionally imbalanced
Population census is data collected by the government which gives them an idea of the total population in a country/suburb or city. This information can also be sorted to see how many females/males, children/adults and visitors/residents
