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.
Answer:
Palestinian Arabs opposed the plan, leading to a war over the future control over the territory. How did Palestinian Arabs react to the plan proposed by the United Nations to divide Palestine into two separate states? The plan was rejected and civil war broke out between Arabs and Jews.
1. malaria 2. rivers had terrible waterfalls..too dangerous...until the steam engine was invented it was incredibly dangerous 3. deserts....they didn't know how to travel through the deserts and find an oasis which made it very difficult to travel through