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10 Most Dangerous Jobs in America and 5 Common Accidents

money.howstuffworks.com/most-dangerous-jobs-in-america.htm

Heavy machinery and power tools are effective aids for improving efficiency, but they can also lead to serious accidents and fatal work injuries. It's no stretch of the imagination, then, to see how jobs that rely on these resources often land on the list of most dangerous jobs in America.

The North American Geography Quiz

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North America encompasses huge expanses of water and land. What do you know about this area's people, geology and climate? Take this quiz to find out.

How Gold Works

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We love it. We wear it glittering around our necks and sparkling at our ears, wrists and feet. We pass it down to our children and hoard it in secret stashes. Why is this precious metal so prized?

What does the Army do at the Prototype Integration Facility?

science.howstuffworks.com/prototype-integration-facility.htm

Prototype Integration Facility helps build new tools for the U.S. military. Learn about the Prototype Integration Facility.

10 Boom Towns that Went Bust

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Some towns boom but eventually bust economically. Learn about 10 boom towns that went bust at HowStuffWorks.

What Is Deforestation?

science.howstuffworks.com/environmental/green-science/deforestation.htm

Deforestation, or the removal of forests, contributes to global warming. Learn how deforestation harms our plants and animals -- even to extinction.

Centralia, Pennsylvania: The Ghost Town Atop an Inferno

science.howstuffworks.com/nature/natural-disasters/centralia.htm

The fire under the tiny town of Centralia, Pennsylvania, has been burning since at least 1962 and, to this day, nobody knows how to put it out.

Venice Isn't Alone: 7 Sinking Cities Around the World

science.howstuffworks.com/environmental/earth/geophysics/sinking-cities.htm

Subsidence, or the decline in the elevation of land surface, is creating a problem for some coastal cities as sea levels rise.

Smallest Countries in the World

history.howstuffworks.com/european-history/smallest-country-in-world.htm

Is it the country with the smallest land area? Or the fewest people? Either way, you get the same answer.

Meet Florence Kelley: Labor Reformer, Abolitionist and Co-founder of the NAACP

history.howstuffworks.com/historical-figures/florence-kelley.htm

Grateful that U.S. law ensures decent working conditions and children go to school instead of working in mines? Thank Florence Kelley and her father.

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