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16 Facts About United States
2. The United States is already overpopulated in the sense that we are consuming our national ecological resources at an unsustainable rate.
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3. The United States has the highest salamander diversity in the world.
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5. The United States is the world's largest consumer of petroleum.
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6. The United States leads the world in scientific research papers and impact factor.
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7. In 2009, the United States had the third-highest workforce productivity per person in the world, behind Luxembourg and Norway.
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8. The United States is ranked among the top three in the Global Competitiveness Report as well.
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9. The United States is the largest producer of oil in the world, as well as its second-largest importer.
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11. The United States is home to 428 mammal species, 784 bird species, 311 reptile species, and 295 amphibian species.
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12. The United States has the most ecoregions out of any country in the world.
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13. The United States is the world's largest importer and the second largest exporter of goods, by value.
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16. The United States emerged from the thirteen British colonies established along the East Coast.
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