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The West Coast of the continental United States and areas of Alaska (including the Aleutian Islands, the Alaskan Peninsula and southern Alaskan coast) make up part of the Pacific Ring of Fire, an area of heavy tectonic and volcanic activity that is the source of 90% of the world's earthquakes.[citation needed] The American Northwest sees the highest concentration of active volcanoes in the United States, in Washington, Oregon and northern California along the Cascade Mountains. There are several active volcanoes located in the islands of Hawaii, including Kilauea in ongoing eruption since 1983, but they do not typically adversely affect the inhabitants of the islands. There has not been a major life-threatening eruption on the Hawaiian islands since the 17th century. Volcanic eruptions can occasionally be devastating, such as in the 1980 eruption of Mount St. Helens in Washington.
What volcano erupted in 1990?
A: unanswerable

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Since 1642 (in the 13 colonies, the United States under the Articles of Confederation, and the current United States) an estimated 364 juvenile offenders have been put to death by the states and the federal government. The earliest known execution of a prisoner for crimes committed as a juvenile was Thomas Graunger in 1642. Twenty-two of the executions occurred after 1976, in seven states. Due to the slow process of appeals, it was highly unusual for a condemned person to be under 18 at the time of execution. The youngest person to be executed in the 20th century was George Stinney, who was electrocuted in South Carolina at the age of 14 on June 16, 1944. The last execution of a juvenile may have been Leonard Shockley, who died in the Maryland gas chamber on April 10, 1959, at the age of 17. No one has been under age 19 at time of execution since at least 1964. Since the reinstatement of the death penalty in 1976, 22 people have been executed for crimes committed under the age of 18. Twenty-one were 17 at the time of the crime. The last person to be executed for a crime committed as a juvenile was Scott Hain on April 3, 2003 in Oklahoma.
What method was used to free Leonard Shockley?
A: unanswerable

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The game pad controllers were more-or-less copied directly from the Game & Watch machines, although the Famicom design team originally wanted to use arcade-style joysticks, even taking apart ones from American game consoles to see how they worked. However, it was eventually decided that children might step on joysticks left on the floor and their durability was also questioned. Katsuyah Nakawaka attached a Game & Watch D-pad to the Famicom prototype and found that it was easy to use and had no discomfort. Ultimately though, they did install a 15-pin expansion port on the front of the console so that an arcade-style joystick could be used optionally. The controllers were hard-wired to the console with no connectors for cost reasons.
Why were the controllers hard-wired to the console with multiple connectors?
A: unanswerable

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Bell's own detailed account, presented to the American Association for the Advancement of Science in 1882, differs in several particulars from most of the many and varied versions now in circulation, most notably by concluding that extraneous metal was not to blame for failure to locate the bullet. Perplexed by the peculiar results he had obtained during an examination of Garfield, Bell "...proceeded to the Executive Mansion the next morning...to ascertain from the surgeons whether they were perfectly sure that all metal had been removed from the neighborhood of the bed. It was then recollected that underneath the horse-hair mattress on which the President lay was another mattress composed of steel wires. Upon obtaining a duplicate, the mattress was found to consist of a sort of net of woven steel wires, with large meshes. The extent of the [area that produced a response from the detector] having been so small, as compared with the area of the bed, it seemed reasonable to conclude that the steel mattress had produced no detrimental effect." In a footnote, Bell adds that "The death of President Garfield and the subsequent post-mortem examination, however, proved that the bullet was at too great a distance from the surface to have affected our apparatus."
Where did Bell go the day after trying to find the bullet?
A:
Executive Mansion