What was one major cause of worldwide conflict during the first decade of the 21st century? A. Disagreement over which countries should enforce international law.
B. Clashes over how the United Nations should deal with terrorist groups.
C. Competition between groups for political power in a country.
D. Struggles between huge alliances made up of dozens of powerful countires.

ok so u have2 basically

there were abundant sources of fuel nearby

early greek culture has had an important impact on government and education. first of all, they established the democratic political systems and procedures we have today. consequently, we inherited trial by jury for example. considering education, greek philosphers, mathematicians set he intellectual basis of different areas of studies. in addition, the alphabet originated from the phoenician alphabet into the one we have today and the first library was built in egypt. moreover, greek culture has an impact in current art, architecture and sports disciplines.