Problem: Almost all Protestant denominations are represented in Paris, with 74 evangelical churches from various denominations, including 21 parishes of the United Protestant Church of France and two parishes of the Church of Jesus Christ of the Latter-Day Saints. There are several important churches for the English-speaking community: the American Church in Paris, founded in 1814, was the first American church outside the United States; the current church was finished in 1931. The Saint George's Anglican Church in the 16th arrondissement is the principal Anglican church in the city.
How many parishes of the LDS church are in Paris?
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Answer: two

Problem: Film speed is found from a plot of optical density vs. log of exposure for the film, known as the Dlog H curve or HurterDriffield curve. There typically are five regions in the curve: the base + fog, the toe, the linear region, the shoulder, and the overexposed region. For black-and-white negative film, the "speed point" m is the point on the curve where density exceeds the base + fog density by 0.1 when the negative is developed so that a point n where the log of exposure is 1.3 units greater than the exposure at point m has a density 0.8 greater than the density at point m. The exposure Hm, in lux-s, is that for point m when the specified contrast condition is satisfied. The ISO arithmetic speed is determined from:
How many regions does the Hurter-Driffield curve have?
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Answer: five

Problem: GE has a history of some of its activities giving rise to large-scale air and water pollution. Based on year 2000 data, researchers at the Political Economy Research Institute listed the corporation as the fourth-largest corporate producer of air pollution in the United States, with more than 4.4 million pounds per year (2,000 tons) of toxic chemicals released into the air. GE has also been implicated in the creation of toxic waste. According to EPA documents, only the United States Government, Honeywell, and Chevron Corporation are responsible for producing more Superfund toxic waste sites.
Which organization identified GE as the fourth largest corporate producer of air pollution in the US?
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Answer:
Political Economy Research Institute