Problem: Antibiotics:

Antibacterial antibiotics are commonly classified based on their mechanism of action, chemical structure, or spectrum of activity. Most target bacterial functions or growth processes. Those that target the bacterial cell wall (penicillins and cephalosporins) or the cell membrane (polymyxins), or interfere with essential bacterial enzymes (rifamycins, lipiarmycins, quinolones, and sulfonamides) have bactericidal activities. Those that target protein synthesis (macrolides, lincosamides and tetracyclines) are usually bacteriostatic (with the exception of bactericidal aminoglycosides). Further categorization is based on their target specificity. "Narrow-spectrum" antibacterial antibiotics target specific types of bacteria, such as Gram-negative or Gram-positive bacteria, whereas broad-spectrum antibiotics affect a wide range of bacteria. Following a 40-year hiatus in discovering new classes of antibacterial compounds, four new classes of antibacterial antibiotics have been brought into clinical use in the late 2000s and early 2010s: cyclic lipopeptides (such as daptomycin), glycylcyclines (such as tigecycline), oxazolidinones (such as linezolid), and lipiarmycins (such as fidaxomicin).

What do anitibiotics mostly target?
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A: bacterial functions or growth processes


Problem: Antarctica:

Some of Antarctica has been warming up; particularly strong warming has been noted on the Antarctic Peninsula. A study by Eric Steig published in 2009 noted for the first time that the continent-wide average surface temperature trend of Antarctica is slightly positive at >0.05 °C (0.09 °F) per decade from 1957 to 2006. This study also noted that West Antarctica has warmed by more than 0.1 °C (0.2 °F) per decade in the last 50 years, and this warming is strongest in winter and spring. This is partly offset by autumn cooling in East Antarctica. There is evidence from one study that Antarctica is warming as a result of human carbon dioxide emissions, but this remains ambiguous. The amount of surface warming in West Antarctica, while large, has not led to appreciable melting at the surface, and is not directly affecting the West Antarctic Ice Sheet's contribution to sea level. Instead the recent increases in glacier outflow are believed to be due to an inflow of warm water from the deep ocean, just off the continental shelf. The net contribution to sea level from the Antarctic Peninsula is more likely to be a direct result of the much greater atmospheric warming there.

What do some researchers believe to be that cause of this warming?
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A: carbon dioxide emissions


Problem: Detroit:

While Blacks/African-Americans comprised only 13 percent of Michigan's population in 2010, they made up nearly 82 percent of Detroit's population. The next largest population groups were Whites, at 10 percent, and Hispanics, at 6 percent. According to the 2010 Census, segregation in Detroit has decreased in absolute and in relative terms. In the first decade of the 21st century, about two-thirds of the total black population in metropolitan area resided within the city limits of Detroit. The number of integrated neighborhoods has increased from 100 in 2000 to 204 in 2010. The city has also moved down the ranking, from number one most segregated to number four. A 2011 op-ed in The New York Times attributed the decreased segregation rating to the overall exodus from the city, cautioning that these areas may soon become more segregated. This pattern already happened in the 1970s, when apparent integration was actually a precursor to white flight and resegregation. Over a 60-year period, white flight occurred in the city. According to an estimate of the Michigan Metropolitan Information Center, from 2008 to 2009 the percentage of non-Hispanic White residents increased from 8.4% to 13.3%. Some empty nesters and many younger White people moved into the city while many African Americans moved to the suburbs.

How much of Michigan's population is Black?
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A: 13 percent


Problem: American Idol:

In 2001, Fuller, Cowell, and TV producer Simon Jones attempted to sell the Pop Idol format to the United States, but the idea was met with poor response from United States television networks. However, Rupert Murdoch, head of Fox's parent company, was persuaded to buy the show by his daughter Elisabeth, who was a fan of the British show. The show was renamed American Idol: The Search for a Superstar and debuted in the summer of 2002. Cowell was initially offered the job as showrunner but refused; Lythgoe then took over that position. Much to Cowell's surprise, it became one of the hit shows for the summer that year. The show, with the personal engagement of the viewers with the contestants through voting, and the presence of the acid-tongued Cowell as a judge, grew into a phenomenon. By 2004, it had become the most-watched show in the U.S., a position it then held on for seven consecutive seasons.

Who talked Rupert Murdoch into buying American Idol for FOX?
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A:
his daughter Elisabeth