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Homo Ergaster and Homo Habilis
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Louis XVI´s decision to summon the estates-general prove disastrous because during it, the Third Estate , representing the Commoners decided to form a National Assembly, inviting the other two Estates ( Clergy and Nobility) to join them against the King. This is considered to be the start of the French Revolution.
There is an agreement of price and quantity in the market therefore all market forces stabilized and reached a price that consumers are willing to pay for goods and producers a price at which they are willing to produce in order to make a profit
B. Interchangeable parts were identical parts that could be exchanged for one another in the manufacture of guns, clocks, and other goods.