Problem: The "Fan Save" was introduced in the fourteenth season. During the finals, viewers are given a five-minute window to vote for the contestants in danger of elimination by using their Twitter account to decide which contestant will move on to the next show, starting with the Top 8.
What was introduced in season 14 to allow the fans to help save a contestant?
The answer is the following: Fan Save

Problem: The Enlightenment has always been contested territory. Its supporters "hail it as the source of everything that is progressive about the modern world. For them, it stands for freedom of thought, rational inquiry, critical thinking, religious tolerance, political liberty, scientific achievement, the pursuit of happiness, and hope for the future." However, its detractors accuse it of 'shallow' rationalism, naive optimism, unrealistic universalism, and moral darkness. From the start there was a Counter-Enlightenment in which conservative and clerical defenders of traditional religion attacked materialism and skepticism as evil forces that encouraged immorality. By 1794, they pointed to the Terror during the French Revolution as confirmation of their predictions. As the Enlightenment was ending, Romantic philosophers argued that excessive dependence on reason was a mistake perpetuated by the Enlightenment, because it disregarded the bonds of history, myth, faith and tradition that were necessary to hold society together.
What two ideas did conservative and clerical defenders of traditional religion attack as evil forces that encouraged immorality?
The answer is the following: materialism and skepticism

Problem: Hunting along migration routes threatens some bird species. The populations of Siberian cranes (Leucogeranus leucogeranus) that wintered in India declined due to hunting along the route, particularly in Afghanistan and Central Asia. Birds were last seen in their favourite wintering grounds in Keoladeo National Park in 2002. Structures such as power lines, wind farms and offshore oil-rigs have also been known to affect migratory birds. Other migration hazards include pollution, storms, wildfires, and habitat destruction along migration routes, denying migrants food at stopover points. For example, in the East AsianAustralasian Flyway, up to 65% of key intertidal habitat at the Yellow Sea migration bottleneck has been destroyed since the 1950s.
What can power lines, wind farms and oil rigs affect?
The answer is the following: migratory birds

Problem: The gut is generally an almost straight tube supported by the mesenteries (vertical partitions within segments), and ends with the anus on the underside of the pygidium. However, in members of the tube-dwelling family Siboglinidae the gut is blocked by a swollen lining that houses symbiotic bacteria, which can make up 15% of the worms' total weight. The bacteria convert inorganic matter such as hydrogen sulfide and carbon dioxide from hydrothermal vents, or methane from seeps to organic matter that feeds themselves and their hosts, while the worms extend their palps into the gas flows to absorb the gases needed by the bacteria.
How much of a Siboglinidae's weight is symbiotic bacteria?
The answer is the following:
15%