Virginia plan advocated two legislative houses of which membership would be based on population. New Jersey plan advocated one legislative house, membership in which would be equal for all states.
Http://www.dummies.com/education/history/american-history/american-preparation-for-world-war-ii/
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The Manhattan project is when they were building nuclear weapons for wwii
About 50 percent of federal revenue comes from individual income taxes, 7 percent from corporate income taxes, and another 36 percent from payroll taxes that fund social insurance programs . The rest comes from a mix of sources.
Early humans eventually formed hunter-gatherer societies so catching food and cooking it could be split evenly between the people, and so everyone could get food properly, all the while sharing with eachother and looking out for eachother. Being in groups made it easier to catch more food, because they could take out more than they could together than with only one person. Forming these societies made things much more easy and efficient for them.