The problem: Answer a question about this article:
Insects are the only group of invertebrates to have developed flight. The evolution of insect wings has been a subject of debate. Some entomologists suggest that the wings are from paranotal lobes, or extensions from the insect's exoskeleton called the nota, called the paranotal theory. Other theories are based on a pleural origin. These theories include suggestions that wings originated from modified gills, spiracular flaps or as from an appendage of the epicoxa. The epicoxal theory suggests the insect wings are modified epicoxal exites, a modified appendage at the base of the legs or coxa. In the Carboniferous age, some of the Meganeura dragonflies had as much as a 50 cm (20 in) wide wingspan. The appearance of gigantic insects has been found to be consistent with high atmospheric oxygen. The respiratory system of insects constrains their size, however the high oxygen in the atmosphere allowed larger sizes. The largest flying insects today are much smaller and include several moth species such as the Atlas moth and the White Witch (Thysania agrippina).
Wings from the paranotal lobes are based on what theory?
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The answer: paranotal theory

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In July 1956, Nasser unilaterally nationalised the Suez Canal. The response of Anthony Eden, who had succeeded Churchill as Prime Minister, was to collude with France to engineer an Israeli attack on Egypt that would give Britain and France an excuse to intervene militarily and retake the canal. Eden infuriated US President Dwight D. Eisenhower, by his lack of consultation, and Eisenhower refused to back the invasion. Another of Eisenhower's concerns was the possibility of a wider war with the Soviet Union after it threatened to intervene on the Egyptian side. Eisenhower applied financial leverage by threatening to sell US reserves of the British pound and thereby precipitate a collapse of the British currency. Though the invasion force was militarily successful in its objectives, UN intervention and US pressure forced Britain into a humiliating withdrawal of its forces, and Eden resigned.
When was the Suez Canal nationalized?
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The answer: July 1956

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The Prussian General Staff developed by Moltke proved to be extremely effective, in contrast to the traditional French school. This was in large part due to the fact that the Prussian General Staff was created to study previous Prussian operations and learn to avoid mistakes. The structure also greatly strengthened Moltke's ability to control large formations spread out over significant distances. The Chief of the General Staff, effectively the commander in chief of the Prussian army, was independent of the minister of war and answered only to the monarch. The French General Staffalong with those of every other European militarywas little better than a collection of assistants for the line commanders. This disorganization hampered the French commanders' ability to exercise control of their forces.
Who is essentially considered the commander in chief of the Prussian army?
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The answer: The Chief of the General Staff

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Two airports serve Philadelphia: the Philadelphia International Airport (PHL), straddling the southern boundary of the city, and the Northeast Philadelphia Airport (PNE), a general aviation reliever airport in Northeast Philadelphia. Philadelphia International Airport provides scheduled domestic and international air service, while Northeast Philadelphia Airport serves general and corporate aviation. In 2013, Philadelphia International Airport was the 15th busiest airport in the world measured by traffic movements (i.e. takeoffs and landings). It is also the second largest hub and primary international hub for American Airlines.
Name the main airport?
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The answer:
Philadelphia International Airport (PHL)