The Pahlavi and the Ayatollah Khomeini regimes were diametrically opposed. The Pahlavi dynasty ruled Iran from 1925 to 1979. The Pahlavi's were closely associated with the West and ruled in an autocratic matter. This was especially true during the Cold War. Thoroughly western in orientation, women enjoyed significant freedoms in terms of their mobility in public life. The Shah's repression of dissidents led to dissatisfaction among students and the religious right. The last Shah of Iran was forced to resign and leave the country. The Khomeni government represented the ascendancy of the religious rights. Iran became a theocracy and women were increasingly relegated to the margins. They were forced to adhere to religious doctrine, and wear the hijab (Islamic head covering)
- economic disputes (restrictions of u.s trades)
- Royal Navy’s impressment of American seamen
(Keep in mind you didn't list any reasons so it would be kind of hard to answer)
The type of society which didn't have a centralized government was called a Pastoral society. So that is your correct answer.
All the other civilizations/societies - the Egyptian one, the Mycenaeans, and the Indus valley civilization - had governments which were centralized and not dispersed to different locations.
4. World population did not reach one billion until 1804.