Problem: Evidence suggests that blast furnaces, that convert raw iron ore into pig iron, which can be remelted in a cupola furnace to produce cast iron by means of a cold blast and hot blast, were operational in China by the late Spring and Autumn period (722–481 BC). The bloomery was nonexistent in ancient China; however, the Han-era Chinese produced wrought iron by injecting excess oxygen into a furnace and causing decarburization. Cast iron and pig iron could be converted into wrought iron and steel using a fining process.
What element was used in the production of wrought iron?
The answer is the following: oxygen

Problem: Executive power is vested, with exceptions and qualifications, in the President. By law (Section 2.) the president becomes the Commander in Chief of the Army and Navy, Militia of several states when called into service, has power to make treaties and appointments to office "with the Advice and Consent of the Senate," receive Ambassadors and Public Ministers, and "take care that the laws be faithfully executed" (Section 3.) By using these words, the Constitution does not require the president to personally enforce the law; rather, officers subordinate to the president may perform such duties. The Constitution empowers the president to ensure the faithful execution of the laws made by Congress and approved by the President. Congress may itself terminate such appointments, by impeachment, and restrict the president. Bodies such as the War Claims Commission, the Interstate Commerce Commission and the Federal Trade Commission—all quasi-judicial—often have direct Congressional oversight.
What is a Congressional means of removing presidential appointees?
The answer is the following: impeachment

Problem: Historical narratives of manga tend to focus either on its recent, post-WWII history, or on attempts to demonstrates deep roots in the past, such as to the Chōjū-jinbutsu-giga picture scroll of the 12th and 13th centuries, or the early 19th-century Hokusai Manga. The first historical overview of Japanese comics was Seiki Hosokibara's Nihon Manga-Shi[i] in 1924. Early post-war Japanese criticism was mostly of a left-wing political nature until the 1986 publication for Tomofusa Kure's Modern Manga: The Complete Picture,[j] which de-emphasized politics in favour of formal aspects, such as structure and a "grammar" of comics. The field of manga studies increased rapidly, with numerous books on the subject appearing in the 1990s. Formal theories of manga have focused on developing a "manga expression theory",[k] with emphasis on spatial relationships in the structure of images on the page, distinguishing the medium from film or literature, in which the flow of time is the basic organizing element. Comics studies courses have proliferated at Japanese universities, and Japan Society for Studies in Cartoon and Comics (ja)[l] was established in 2001 to promote comics scholarship. The publication of Frederik L. Schodt's Manga! Manga! The World of Japanese Comics in 1983 led to the spread of use of the word manga outside Japan to mean "Japanese comics" or "Japanese-style comics".
Who helped the rest of the world use the word manga outside of Japan's borders?
The answer is the following: Frederik L. Schodt

Problem: In August 2008, West revealed plans to open 10 Fatburger restaurants in the Chicago area; the first was set to open in September 2008 in Orland Park. The second followed in January 2009, while a third location is yet to be revealed, although the process is being finalized. His company, KW Foods LLC, bought the rights to the chain in Chicago. Ultimately, in 2009, only two locations actually opened. In February 2011, West shut down the Fatburger located in Orland Park. Later that year, the remaining Beverly location also was shuttered.
What was the name of the restaurant Kanye annouced he was opening?
The answer is the following:
Fatburger