During the mid-nineteenth century, many Americans <span>"moved to cities in search of economic opportunity.</span>" People were leaving their jobs on the farms and taking higher-paying jobs in factories, which tended to be in major cities.
The Silk Roads were made up of an indirect chain of separate transactions through which goods crossed the entire land area of Eurasia. Rarely did merchants themselves travel the length of these routes; in fact, few of them knew the complexity and breadth of the Silk Roads. Merchants primarily engaged in local instances of "relay trade" in which goods changed "hands many times before reaching their final destinations."[1] Because the Silk Roads crossed land it was much more expensive and dangerous to move goods. Consequently, trade focused on luxury items that would bring a nice profit making the greater risks worthwhile. Particularly important were luxury items with a high value to weight ratio.
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C. the honen family's and all root
Food surplus gave more of the population time to develop and innovate new ideas
The correct option is D.
Thomas Edison was an American investor and business man and he had been described as the American greatest inventor, because during his life time he accumulated 1,093 patents. He is the brain behind many devices which had radically changed the way people live their lives today. The devices invented by him include: phonograph, light bubs, moving pictures, electrographic vote recorder, the carbon telephone transmitter, etc.
