Complete the sentence with the best answer. The invention of the internal combustion engine was an essential step that eventually led to A. the manufacture of stronger steel. B. sustained, pilot-controlled flight. C. steam-powered ocean travel. D. artificial lighting for city streets.

b: the establishment clause  

b: socialism  

ok so u have2 basically

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.

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp