They have constructed terraces on mountainsides to create more farmland.
It has no ethnic minorities.
Members of ethnic groups rarely speak the same language.
Answer:
The Germans hated the Treaty of Versailles because they had not been allowed to take part in the Conference. ... Germany had to pay £6,600 million 'reparations', a huge sum which Germans felt was just designed to destroy their economy and starve their children. Finally, Germans hated the loss of land.
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Answer: FDR's ambitious plan transformed the Tennessee Valley by creating dams and reservoirs for electricity and flood control, controlling soil erosion through forest restoration and better farming techniques, and improving navigation and commerce along the Tennessee River.
Answer: "The Cultural Revolution damaged China's economy and led to the death of an estimated 500,000 to 2,000,000 people. ... To eliminate his rivals within the Communist Party of China (CPC) and in schools, factories, and government institutions, Mao insisted that revisionists be removed through violent class struggle."