Traditional hunter-gatherer lifestyles were thrown away for more reliable food supply and permanent settlements. Agriculture also helped establish social classes. New technologies also developed due to the need for better tools for farming.
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2,3,5 are the true statements I believe.
Baby boomers helped out the economy, birth rates increased and a population growth . More goods and services needed
The entrance of West Germany into NATO was the final step in integrating that nation into the defense system of Western Europe. It was also the final nail in the coffin as far as any possibility of a reunited Germany in the near future. For the next 35 years, East and West Germany came to symbolize the animosities of the Cold War. In 1990, Germany was finally reunified; the new German state remained a member of NATO.
The convention of 1786 was actually called the Annapolis convention and its goal was to discuss and develop a consensus about reversing the protectionist trade barriers that each state had erected. The Constitutional Convention happened in 1787 and its goal was to revise the Articles of Confederation.