Problem: Hydrogen:

Hydrogen gas was first artificially produced in the early 16th century, via the mixing of metals with acids. In 1766–81, Henry Cavendish was the first to recognize that hydrogen gas was a discrete substance, and that it produces water when burned, a property which later gave it its name: in Greek, hydrogen means "water-former".

Who first recognized that hydrogen was a discrete substance?
---
A: Henry Cavendish


Problem: Iran has a paramilitary, volunteer militia force within the IRGC, called the Basij, which includes about 90,000 full-time, active-duty uniformed members. Up to 11 million men and women are members of the Basij who could potentially be called up for service; GlobalSecurity.org estimates Iran could mobilize "up to one million men". This would be among the largest troop mobilizations in the world. In 2007, Iran's military spending represented 2.6% of the GDP or $102 per capita, the lowest figure of the Persian Gulf nations. Iran's military doctrine is based on deterrence. In 2014 arms spending the country spent $15 billion and was outspent by the states of the Gulf Cooperation Council by a factor of 13.
In 2007 what was Iran spending 2.6% of its GDP on?
---
Answer: military spending


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Towards the center, at the end of the groove, there is another wide-pitched section known as the lead-out. At the very end of this section the groove joins itself to form a complete circle, called the lock groove; when the stylus reaches this point, it circles repeatedly until lifted from the record. On some recordings (for example Sgt. Pepper's Lonely Hearts Club Band by The Beatles, Super Trouper by Abba and Atom Heart Mother by Pink Floyd), the sound continues on the lock groove, which gives a strange repeating effect. Automatic turntables rely on the position or angular velocity of the arm, as it reaches the wider spacing in the groove, to trigger a mechanism that lifts the arm off the record. Precisely because of this mechanism, most automatic turntables are incapable of playing any audio in the lock groove, since they will lift the arm before it reaches that groove.
What do most automatic turn tables do when they meet a lock groove?
A: lift the arm


Context and question: Disagreements over the island's relationship with Australia were put in sharper relief by a 2006 review undertaken by the Australian government. Under the more radical of two models proposed in the review, the island's legislative assembly would have been reduced to the status of a local council. However, in December 2006, citing the "significant disruption" that changes to the governance would impose on the island's economy, the Australian government ended the review leaving the existing governance arrangements unaltered.
What did the Australian government say that changes to Norfolk Island's government would not cause?
Answer: unanswerable


Question: The Alps are a crescent shaped geographic feature of central Europe that ranges in a 800 km (500 mi) arc from east to west and is 200 km (120 mi) in width. The mean height of the mountain peaks is 2.5 km (1.6 mi). The range stretches from the Mediterranean Sea north above the Po basin, extending through France from Grenoble, eastward through mid and southern Switzerland. The range continues toward Vienna in Austria, and east to the Adriatic Sea and into Slovenia. To the south it dips into northern Italy and to the north extends to the south border of Bavaria in Germany. In areas like Chiasso, Switzerland, and Neuschwanstein, Bavaria, the demarcation between the mountain range and the flatlands are clear; in other places such as Geneva, the demarcation is less clear. The countries with the greatest alpine territory are Switzerland, France, Austria and Italy.
Is there an answer to this question: How far does the Alps range stretch?

Answer: the Mediterranean Sea north above the Po basin, extending through France from Grenoble, eastward through mid and southern Switzerland


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Some insects use parthenogenesis, a process in which the female can reproduce and give birth without having the eggs fertilized by a male. Many aphids undergo a form of parthenogenesis, called cyclical parthenogenesis, in which they alternate between one or many generations of asexual and sexual reproduction. In summer, aphids are generally female and parthenogenetic; in the autumn, males may be produced for sexual reproduction. Other insects produced by parthenogenesis are bees, wasps and ants, in which they spawn males. However, overall, most individuals are female, which are produced by fertilization. The males are haploid and the females are diploid. More rarely, some insects display hermaphroditism, in which a given individual has both male and female reproductive organs.
Aphis have asexual and sexual what?
A:
reproduction