Answer:
1. People were poor and had hard lives.
People did not like the government and were tired of WW1
2. Alliances among European nations.
Answer:
archaeologis is the main source of information about early African cultures
Explanation:
Archaeology has helped historians to write history of pre-historic times. Since writing began late in most parts of the continent, archeology has become the main source of information for the reconstruction of African history of the distant past
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France helped provide troops, money and military leadership to the Americans. They made a treaty of alliance which means they were allies against Great Britain.
The great ancient civilizations flourished around river valleys because the rivers produce rich fertile soil and a supply of water for irrigation of crops and human consumption. This allows for the agricultural production to be greater and it can sustain more people.