Here is a question about this article: Although the firearms used by the infantry, particularly machine guns, can be used to engage low altitude air targets, on occasion with notable success, their effectiveness is generally limited and the muzzle flashes reveal infantry positions. Speed and altitude of modern jet aircraft limit target opportunities, and critical systems may be armored in aircraft designed for the ground attack role. Adaptations of the standard autocannon, originally intended for air-to-ground use, and heavier artillery systems were commonly used for most anti-aircraft gunnery, starting with standard pieces on new mountings, and evolving to specially designed guns with much higher performance prior to World War II.
What is the answer to this question: Along with speed of the modern jet, what else limits target opportunities?
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So... altitude


Here is a question about this article: Some definitions of southern Europe, also known as Mediterranean Europe, include the countries of the Iberian peninsula (Spain and Portugal), the Italian peninsula, southern France and Greece. Other definitions sometimes include the Balkan countries of southeast Europe, which are geographically in the southern part of Europe, but which have different historical, political, economic, and cultural backgrounds.
What is the answer to this question: What area of France is considered a part of Mediterranean Europe?
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So... southern France


Here is a question about this article: The term "classical music" did not appear until the early 19th century, in an attempt to distinctly canonize the period from Johann Sebastian Bach to Beethoven as a golden age. The earliest reference to "classical music" recorded by the Oxford English Dictionary is from about 1836.
What is the answer to this question: What year is the earliest reference to 'classical music'?
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So...
1836