Question: The Appalachian Mountains contain major deposits of anthracite coal as well as bituminous coal. In the folded mountains the coal is in metamorphosed form as anthracite, represented by the Coal Region of northeastern Pennsylvania. The bituminous coal fields of western Pennsylvania, western Maryland, southeastern Ohio, eastern Kentucky, southwestern Virginia, and West Virginia contain the sedimentary form of coal. The mountain top removal method of coal mining, in which entire mountain tops are removed, is currently threatening vast areas and ecosystems of the Appalachian Mountain region.
Is there an answer to this question: What kinds of fields are in southwestern Kentucky?

Answer: unanswerable

Question: Strong, royalty-based nation states rose throughout Europe in the Late Middle Ages, particularly in England, France, and the Christian kingdoms of the Iberian Peninsula: Aragon, Castile, and Portugal. The long conflicts of the period strengthened royal control over their kingdoms and were extremely hard on the peasantry. Kings profited from warfare that extended royal legislation and increased the lands they directly controlled. Paying for the wars required that methods of taxation become more effective and efficient, and the rate of taxation often increased. The requirement to obtain the consent of taxpayers allowed representative bodies such as the English Parliament and the French Estates General to gain power and authority.
Is there an answer to this question: What French body was similar in purpose to the English Parliament?

Answer: Estates General

Question: The Norfolk Island Group Nepean Island is also home to breeding seabirds. The providence petrel was hunted to local extinction by the beginning of the 19th century, but has shown signs of returning to breed on Phillip Island. Other seabirds breeding there include the white-necked petrel, Kermadec petrel, wedge-tailed shearwater, Australasian gannet, red-tailed tropicbird and grey ternlet. The sooty tern (known locally as the whale bird) has traditionally been subject to seasonal egg harvesting by Norfolk Islanders.
Is there an answer to this question: What island in the Norfolk Island Group is home to breeding seabirds?

Answer: Nepean Island

Question: In the U.S., for example, copyright case law contains a substantial similarity requirement to determine whether the work was copied. Likewise, courts may require computer software to pass an Abstraction-Filtration-Comparison test (AFC Test) to determine if it is too abstract to qualify for protection, or too dissimilar to an original work to be considered infringing. Software-related case law has also clarified that the amount of R&D, effort and expense put into a work's creation doesn't affect copyright protection.
Is there an answer to this question: What has hardware case law determined about R&D, effort and expense put into creation?

Answer:
unanswerable