Problem: Geological history of Earth:

During the Miocene continents continued to drift toward their present positions. Of the modern geologic features, only the land bridge between South America and North America was absent, the subduction zone along the Pacific Ocean margin of South America caused the rise of the Andes and the southward extension of the Meso-American peninsula. India continued to collide with Asia. The Tethys Seaway continued to shrink and then disappeared as Africa collided with Eurasia in the Turkish-Arabian region between 19 and 12 Ma (ICS 2004). Subsequent uplift of mountains in the western Mediterranean region and a global fall in sea levels combined to cause a temporary drying up of the Mediterranean Sea resulting in the Messinian salinity crisis near the end of the Miocene.

Which crisis occured towards the end of the Miocene period?
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A: Messinian salinity crisis


Problem: The Cork Suburban Rail system also departs from Kent Station and provides connections to parts of Metropolitan Cork. Stations include Little Island, Mallow, Midleton, Fota and Cobh. In July 2009 the Glounthaune to Midleton line was reopened, with new stations at Carrigtwohill and Midleton (with future stations planned for Kilbarry, Monard, Carrigtwohill West and Blarney). Little Island Railway Station serves Cork's Eastern Suburbs, while Kilbarry Railway Station is planned to serve the Northern Suburbs.
What line was close in July of 2009?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 1999, a Greatest Hits III album was released. This featured, among others, "Queen + Wyclef Jean" on a rap version of "Another One Bites the Dust". A live version of "Somebody to Love" by George Michael and a live version of "The Show Must Go On" with Elton John were also featured in the album. By this point, Queen's vast amount of record sales made them the second best selling artist in the UK of all time, behind the Beatles. In 2002, Queen were awarded the 2,207th star on the Hollywood Walk of Fame, which is located at 6358 Hollywood Blvd. On 29 November 2003, May and Taylor performed at the 46664 Concert hosted by Nelson Mandela at Green Point Stadium, Cape Town, to raise awareness of the spread of HIV/AIDS in South Africa. May and Taylor spent time at Mandela's home, discussing how Africa's problems might be approached, and two years later the band was made ambassadors for the 46664 cause.
Alive version of Somebody to Love featured what artist?
A: George Michael


Context and question: Endemic species can be threatened with extinction through the process of genetic pollution, i.e. uncontrolled hybridization, introgression and genetic swamping. Genetic pollution leads to homogenization or replacement of local genomes as a result of either a numerical and/or fitness advantage of an introduced species. Hybridization and introgression are side-effects of introduction and invasion. These phenomena can be especially detrimental to rare species that come into contact with more abundant ones. The abundant species can interbreed with the rare species, swamping its gene pool. This problem is not always apparent from morphological (outward appearance) observations alone. Some degree of gene flow is normal adaptation, and not all gene and genotype constellations can be preserved. However, hybridization with or without introgression may, nevertheless, threaten a rare species' existence.
What behavior causes swamping of a gene pool?
Answer: The abundant species can interbreed with the rare species


Question: Over three quarters of the student body has some proficiency in a second language (numbering 107 languages in total). This is partially due to the fact that 45 percent of the student body at BYU has been missionaries for LDS Church, and many of them learned a foreign language as part of their mission assignment. During any given semester, about one-third of the student body is enrolled in foreign language classes, a rate nearly four times the national average. BYU offers courses in over 60 different languages, many with advanced courses that are seldom offered elsewhere. Several of its language programs are the largest of their kind in the nation, the Russian program being one example. The university was selected by the United States Department of Education as the location of the national Middle East Language Resource Center, making the school a hub for experts on that region. It was also selected as a Center for International Business Education Research, a function of which is to train business employees in international languages and relations.
Is there an answer to this question: What have 60% of the student body done for the LDS Church?

Answer: unanswerable


Roads in the US have been paved with materials that include asphalt/bitumen since at least 1870, when a street in front of the Newark, NJ City Hall was paved. In many cases, these early pavings were made from naturally occurring "bituminous rock", such as at Ritchie Mines in Macfarlan in Ritchie County, West Virginia from 1852 to 1873. In 1876, asphalt-based paving was used to pave Pennsylvania Avenue in Washington, DC, in time for the celebration of the national centennial. Asphalt/bitumen was also used for flooring, paving and waterproofing of baths and swimming pools during the early 20th century, following similar trends in Europe.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was Ritchie Mines used to waterproof during the 20th century?
Ah, so..
unanswerable