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The mortality rate in the United States increases with age and is lower for women than men at every ...
For millions of people, the United States represents a land of opportunity and freedom from ...
In 2008, Barack Obama was elected president of the United States, the first minority to achieve this ...
Sumatran Tiger Fewer than 400, Indonesia and Texas Ocelot Fewer than 250, southern United States, ...
Major events in the storage, retrieval, and use of fuels in the fed and unfed states
The constitutional division of Powers Between the National Government and the States