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Do unemployment benefits discourage some people from working?

How many global extinctions of marine animal species have been recorded in the last 50 years?

What portion of adults in the U.S. are able to draw accurate conclusions from an 8 X 4 data table and concisely express them?

What portion of doctors say they engage in “defensive medicine” by providing unnecessary medical care to reduce the risk of lawsuits or by avoiding legally risky patients and procedures?

Who receives most of the benefit from the federal tax exemption on state and local government bond interest?

Did the average global temperature increases of the 1980s and 1990s diminish Earth’s natural vegetation productivity?

What portion of the U.S./Mexico border is covered by pedestrian border fencing?

In the case of D.C. v. Heller, 4 of the Supreme Court’s 9 justices wrote that “for every intruder stopped by a homeowner with a firearm, there are 4 gun-related accidents within the home.” What is the actual ratio?

By how many percentage points has the portion of adults in the U.S. who describe themselves as Christians declined since 1960?

According to the Obama administration’s Department of Energy, by how much would Obama’s regulatory agenda for CO2 have raised the cost of electricity by 2022?