Arrange the events involving iran in chronological order.

1) the islamic republic of iran is established. iraq attacks iran.
2)the us central investigation agency (cia) overthrow mohammed mossadegh.
3)shah reza khan steps down from power.
4)mohammed reza pahlavi succeeds his father.

b is correct

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the correct answer is a) egypt and china.

egypt and china are two of the world’s oldest civilizations known by man. both ancient empires have left a great historic and cultural legacy to the world through archeology. both civilzations developed complex social relations, had deep religious beliefs, had dominion of agriculture and left writing records to understand their customs and culture.

among the requirements to consider a civilization, we find urbanization, writing records, a place of residence, agriculture methods, technological specialization, means of transportation, currency, population density, social stratification, and political integration.