Problem: Density is also an important physical property of matter. The concept of density combines what we know about an objects mass and volume. Density reflects how closely packed the particles of matter are. When particles are packed together more tightly, matter is more dense. Differences in density of matter explain many phenomena. It explains why helium balloons rise. It explains why currents such as the Gulf Stream flow through the oceans. It explains why some things float in or sink. You can see this in action by pouring vegetable oil into water. You can see a colorful demonstration in this video.

Question: "How can I observe the role density plays?"

Answer: "Watching rocks"

OPTIONS:
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- yes
Answer: no

Question:
Boone, Ia. -Poor and elderly people may soon go without legal representation in Boone County. Boone County Legal Aid, which for 31 years has provided legal services to those who couldn't afford them, will close in February if a $10,000 grant from Prairie Meadows Racetrack and Casino is not awarded. The legal service is one of the few programs in Iowa that offers legal representation to those who qualify without turning to the state for its services. "It is a very sad situation, but that's the fact," said Alan Schroeder, city attorney and supervisor of Boone County Legal Aid. For the past two years using money mostly from the city and county, Schroeder has upheld the outfit alone, taking on about 60 clients a year, and settling cases that range from domestic abuse to bankruptcy. He also has a private practice. If the legal service closes, he's unsure where his clients will go. The city of Boone gave Schroeder $6,300 in July to resolve pending cases, said Kathy Berg, Boone's finance officer. Without that, the program might already be closed. "All governments are having problems with finances," Boone Mayor George Maybee said. "No one else stepped in. The county didn't. The state didn't." Donovan Olson, chairman of the county Board of Supervisors, said the board quit funding the legal service in July because it felt the county didn't need it. Drake University ended its funding after the 2000 spring semester "for a variety of reasons," Suzanne Levitt, the law professor who oversaw the program, said via e-mail. Olson said Schroeder must prove Prairie Meadows is the primary money source for the board to grant the program any more money. Schroeder ran the program without the help of law students or Drake, which had provided as much as two-thirds of the money in some years. After reading the above, is "The board quit funding the legal service in July because it felt the county didn't need it" the correct answer to the question "Why does the government have problems with finances?"? OPTIONS:
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Answer:
yes

Input: Reuters Holdings PLC said Michael Reupke resigned as general manager to pursue unspecified interests, a move the news organization termed an "amicable separation." Mr. Reupke, 52 years old and a 27-year Reuters veteran, had been the information-services company's general manager for only six months. His appointment to that post, which has senior administrative, staff and policy responsibilities, followed a several-year tenure as Reuters's editor in chief. No successor was named, and Mr. Reupke's duties will be split among three other senior Reuters executives, the company said. In a telephone interview, Mr. Reupke said his departure was for "personal reasons," which he declined to specify. "There is no business reason for my departure," nor any disagreement over policy, he added. He also rejected reports that his departure stemmed from disappointment the general manager's post hadn't also led to a board directorship at the London-based news organization. Mr. Reupke was one of three executives on Reuters's eight-person executive committee who didn't also serve on the company's board of directors. "If I were choosing the people of tomorrow, I would have chosen the people who are now on the board," he said. A Reuters spokesman said the departure reflects "no change in strategy or profits." Mark Shepperd, an analyst at UBS Philips & Drew in London, said, "I suspect (the departure) will be fairly irrelevant for the company. I would be very surprised if his departure signals any change in strategy or change in profit expectations." On London's Stock Exchange, Reuters shares rose five pence to 913 pence ($14.43). In the U.S. over-the-counter market, American depositary shares for Reuters, each representing three shares in the London market, closed unchanged at $43.875. The senior of the three executives who will assume Mr. Reupke's duties is Nigel Judah, 58, finance director and a Reuters board director. Peter Holland, 45, deputy general manager, becomes director of corporate affairs. And Patrick Mannix, 46, international technical manager, becomes director of group quality programs.
"On London's Stock Exchange, did Reuters shares rise due to a stated change in strategy?" is "No. There was no change in strategy"?

OPTIONS:
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- yes
Output: yes

Input: The highest point of a wave is the crest. The lowest point is the trough. The vertical distance between a crest and a trough is the height of the wave. Wave height is also called amplitude. The horizontal distance between two crests is the wavelength. Both amplitude and wavelength are measures of wave size. The size of an ocean wave depends on how fast, over how great a distance, and how long the wind blows. The greater each of these factors is, the bigger a wave will be. Some of the biggest waves occur with hurricanes. A hurricane is a storm that forms over the ocean. Its winds may blow more than 150 miles per hour! The winds also travel over long distances and may last for many days.

Does the response "Wavelength" correctly answer the question "What is the vertical distance between a crest and a trough?"?

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***
Output: no

Input: On a day it celebrated 50 years of giving free legal advice, Southern Arizona Legal Aid announced it has received two grants totaling more than $7 million. One of the grants includes the creation of a Web site with legal advice for the poor. A three-year grant worth $6.6 million and a separate technology grant were announced at a press conference and dinner held Thursday at Evo. A. DeConcini Federal Courthouse, 405 W. Congress St. Deconcini was one of the organization's early board members. Thursday's celebration was the first public even held at the courthouse. About 100 members of the legal community attended, including state Attorney General Janet Napolitano and Arizona Supreme Court Justice Thomas Zlaket. Both grants come from the Legal Services., a private, nonprofit corporation established by Congress in 1974 to offer poor people equal access to the justice system. It's funded through congressional appropriation. The $6.6 million grant will pay for staffing operations. The Web site, which will be created with a $50,000 grant, is intended to offer legal advice to poor people across Arizona, said Paul Julian, chief executive officer of Southern Arizona Legal Aid. He said he wants every poor person in Arizona to have legal help. "This is another step in trying to realize that. We feel like we do a pretty good job of helping people who find us," Julian said. Julian said that though most people do not own computers, they can still access them at libraries, schools, and courthouses. He said the Web site will help bridge the "digital divide" that keeps the poor from using the Internet as a resource. Southern Arizona Legal Aid was founded in 1951 as the Legal Aid Society of the Pima County Bar Association. It offered free legal advice on civil matters including disputes in small claims court, divorce proceedings and obtaining Social Security benefits. Charles Ares, a member of the board of directors in the 1950s, said the office was kind of a charity operation.
"What day of the week was the 50th anniversary celebrated on and how many members attended?" is "It was held on Monday and the whole city counsel attended"?

OPTIONS:
- no
- yes
Output:
no