Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
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Question: The following five destination shall never be missed *Blue Lagoon : Blue Lagoon geothermal spa is one of the most visited attractions in Iceland. The warm waters are rich in minerals and bathing in the Blue Lagoon is reputed to help some people suffering from skin diseases. The water temperature in the bathing and swimming area of the Lagoon averages 37degC - 39degC(99F -102F). The Blue Lagoon also operates a research and development facility to help find cures for skin diseases using the mineral-rich water. *Budapest: Budapest holds the title "City of Spas" since the year 1934, as it has more hot and medicinal water springs than any other capital city in the world. There are 118 springs in Budapest, providing over 70 million liters of hot water a day. The temperature of the waters is between 22degC and 40degC. *El Tatio: El Tatio is a geyser field located within the Andes Mountains of northern Chile at 4,320 meters above sea level. With over 80 active geysers, the site is the largest geyser field in the southern hemisphere and the third largest in the world. It is a major tourist attraction in Chile and is among the highest-elevation geyser fields in the world. The temperature of the waters goes between 70degC and 85degC. *Hokkaido: Visitors to the Japanese island of Hokkaido have plenty of options. These range from top resorts with thermal baths like the Spa Resort Hawaiians to small traditional inns that have their own small hot pools with water temperature comfortable to skin. Some bathing spots are outdoors and are not associated with any spa or inn. The classic forest and mountain landscapes of this nature-rich island make it a great choice for those seeking a science setting for their baths.

Answer: Which site of the spring has the greatest gap of water temperature?


Question: Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy through the empty space between the Sun and the Earth as radiation. Solar energy has been used for power on a small scale for hundreds of years, and plants have used it for billions of years. Unlike energy from fossil fuels, which almost always come from a central power plant or refinery, solar power can be harnessed locally (Figure 1.1). A set of solar panels on a homes rooftop can be used to heat water for a swimming pool or can provide electricity to the house. Societys use of solar power on a larger scale is just starting to increase. Scientists and engineers have very active, ongoing research into new ways to harness energy from the Sun more efficiently. Because of the tremendous amount of incoming sunlight, solar power is being developed in the United States in southeastern California, Nevada, and Arizona. Solar panels supply power to the Interna- tional Space Station. Solar power plants turn sunlight into electricity using a large group of mirrors to focus sunlight on one place, called a receiver (Figure 1.2). A liquid, such as oil or water, flows through this receiver and is heated to a high temperature by the focused sunlight. The heated liquid transfers its heat to a nearby object that is at a lower temperature through a process called conduction. The energy conducted by the heated liquid is used to make electricity. This solar power plant uses mirrors to focus sunlight on the tower in the center. The sunlight heats a liquid inside the tower to a very high temperature, producing energy to make electricity. Solar energy has many benefits. It is extremely abundant, widespread, and will never run out. But there are problems with the widespread use of solar power. Sunlight must be present. Solar power is not useful in locations that are often cloudy or dark. However, storage technology is being developed. The technology needed for solar power is still expensive. An increase in interested customers will provide incentive for companies to research and develop new technologies and to figure out how to mass-produce existing technologies (Figure 1.3). Solar panels require a lot of space. Fortunately, solar panels can be placed on any rooftop to supply at least some of the power required for a home or business. This experimental car is one example of the many uses that engineers have found for solar energy. Click image to the left or use the URL below. URL: Click image to the left or use the URL below. URL:

Answer: the source of solar power is nuclear


Question: You love Jay Chou's songs and you can sing some quite well. So you make a video of your performance and post it online for your friends to see. But what if this led to something beyond your wildest imagination--a career in music? Canadian teenager Justin Bieber, 16, has just had the magical experience: He posted homemade videos of his versions of songs by American singer Chris Brown online for his relatives. He received a phone call from Brown, telling him how much he liked his performance. His singing eventually earned him a fan base and a record contract. After releasing a popular record in November 2009, his album My world 2.0 came out last Tuesday. Bieber sings ballads and songs about puppy love. But is he just another gooey teen idol? David Malitz, a columnist with the Washington Post, doesn't think so. "If we truly want the best forAmerican children, let us pause and give thanks for Justin Bieber," he writes. "After years of humdrum bubblegum from Miley Cyrus and the Jonas Brothers, the 16yearold has thrown a candycoated wrench into Disney's heartthrob assembly line by giving young fans something worth screaming their lungs out for lovable pop songs." From a boy who grew up below the poverty line with his divorced mom to a star who caused nearriots in shopping malls, even Bieber himself can't believe his overnight fame, although his kind of success is becoming more and more common in the Internet era. Interested in hockey, the national sport of Canada, the boy once put up pictures of players on the walls of his bedroom. He dreamed of being a hockey star and used to practice signing his autograph. He doesn't need practice now. He signs autographs, if the girls can get close enough, as a music star.

Answer:
What's Justin Bieber's hobby?