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Lever<span>, simple machine consisting of a rigid bar that rotates about a fixed point, called a fulcrum. </span>Levers<span> affect the effort, or force, needed to </span>do<span> a certain amount of work, and are used to lift heavy objects.</span>
<span>Either to understand the population density of a specific country or to identify the exact location of a popular city in a region. Social Scientists analyse data about human behaviour, demographics and human geography to draw conclusions about how humans interact, how we are spread out across towns, cities, and countries. This data can give us clues as to how populated a country is and what areas are most popular within the regions of a city. </span>
Answer C. and D.
Converse must pass a proposed amendment by 2/3 majority vote in both the Senate and the house of representatives and send it to the states for ratifications by a vote of the state legislatures.