The problem: Answer a question about this article:
Scientists do not know the exact cause of sexual orientation, but they believe that it is caused by a complex interplay of genetic, hormonal, and environmental influences. They favor biologically-based theories, which point to genetic factors, the early uterine environment, both, or the inclusion of genetic and social factors. There is no substantive evidence which suggests parenting or early childhood experiences play a role when it comes to sexual orientation. Research over several decades has demonstrated that sexual orientation ranges along a continuum, from exclusive attraction to the opposite sex to exclusive attraction to the same sex.
Do scientists know the cause of sexual orientation?
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The answer: Scientists do not know the exact cause of sexual orientation

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George Dayton had founded his Dayton's Dry Goods store in Minneapolis in 1902 and the AMC cooperative in 1912. His descendants built Southdale Center in 1956, opened the Target discount store chain in 1962 and the B. Dalton Bookseller chain in 1966. Dayton's grew to 19 stores under the Dayton's name plus five other regional names acquired by Dayton-Hudson. The Dayton-Hudson Corporation closed the flagship J. L. Hudson Department Store in downtown Detroit in 1983, but expanded its other retail operations. It acquired Mervyn's in 1978, Marshall Field's in 1990, and renamed itself the Target Corporation in 2000. In 2002, Dayton's and Hudson's were consolidated into the Marshall Field's name. In 2005, May Department Stores acquired all of the Marshall Field's stores and shortly thereafter, Macy's acquired May.
What store did the Dayton-Hudson Corporation purchase in 1978?
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The answer: Mervyn's

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According to recent estimates, 50% of the population adheres to Christianity, Islam 48%, while 2% of the population follows other religions including traditional African religion and animism. According to a study made by Pew Research Center, 63% adheres to Christianity and 36% adheres to Islam. Since May 2002, the government of Eritrea has officially recognized the Eritrean Orthodox Tewahedo Church (Oriental Orthodox), Sunni Islam, the Eritrean Catholic Church (a Metropolitanate sui juris) and the Evangelical Lutheran church. All other faiths and denominations are required to undergo a registration process. Among other things, the government's registration system requires religious groups to submit personal information on their membership to be allowed to worship.
What percentage of Eritrea is estimated to adhere to Christianity?
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The answer: 50%

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Some alloys occur naturally, such as electrum, which is an alloy that is native to Earth, consisting of silver and gold. Meteorites are sometimes made of naturally occurring alloys of iron and nickel, but are not native to the Earth. One of the first alloys made by humans was bronze, which is made by mixing the metals tin and copper. Bronze was an extremely useful alloy to the ancients, because it is much stronger and harder than either of its components. Steel was another common alloy. However, in ancient times, it could only be created as an accidental byproduct from the heating of iron ore in fires (smelting) during the manufacture of iron. Other ancient alloys include pewter, brass and pig iron. In the modern age, steel can be created in many forms. Carbon steel can be made by varying only the carbon content, producing soft alloys like mild steel or hard alloys like spring steel. Alloy steels can be made by adding other elements, such as molybdenum, vanadium or nickel, resulting in alloys such as high-speed steel or tool steel. Small amounts of manganese are usually alloyed with most modern-steels because of its ability to remove unwanted impurities, like phosphorus, sulfur and oxygen, which can have detrimental effects on the alloy. However, most alloys were not created until the 1900s, such as various aluminium, titanium, nickel, and magnesium alloys. Some modern superalloys, such as incoloy, inconel, and hastelloy, may consist of a multitude of different components.
What metal is made by combining tin and copper?
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The answer:
bronze