Problem: The idea that Earth is a magnet is far from new. It was first proposed in 1600 by a British physician named William Gilbert. Knowing it acts like a magnet is one thing. Knowing why it acts like a magnet is more difficult. In fact, finding out why is a fairly recent discovery. To find out why required new technology. It was the seismograph that made it possible to learn why the Earth acted like a magnet. Seismograph are used to study earthquakes. By studying earthquake waves they were able to learn about Earths interior. They discovered that Earth has an inner and outer core. The outer core consists of liquid metals, mainly iron and nickel. Scientists think that Earths magnetic field is generated here. It is caused by the motion of this liquid metal. The liquid metal moves as Earth spins on its axis.

Question: "How does the liquid metal within the Earth's core generate a magnetic field?"

Answer: "It moves"

OPTIONS:
- no
- yes
Answer: yes

Problem: Mr. Thorndike had risen, and, in farewell, was holding out his hand to Andrews. He turned, and across the court-room the eyes of the financier and the stenographer met. At the sight of the great man, Spear flushed crimson, and then his look of despair slowly disappeared; and into his eyes there came incredulously hope and gratitude. He turned his head suddenly to the wall. Mr. Thorndike stood irresolute, and then sank back into his chair. The first man in the line was already at the railing, and the questions put to him by the judge were being repeated to him by the other assistant district attorney and a court attendant. His muttered answers were in turn repeated to the judge. "Says he's married, naturalized citizen, Lutheran Church, die- cutter by profession." The probation officer, her hands filled with papers, bustled forward and whispered. "Mrs. Austin says," continued the district attorney, "she's looked into this case, and asks to have the man turned over to her. He has a wife and three children; has supported them for five years." "Is the wife in court?" the judge said. A thin, washed-out, pretty woman stood up, and clasped her hands in front of her. "Has this man been a good husband to you, madam?" asked the young judge. The woman broke into vehement assurances. No man could have been a better husband. Would she take him back? Indeed she would take him back. She held out her hands as though she would physically drag her husband from the pillory. The judge bowed toward the probation officer, and she beckoned the prisoner to her.

Question: "Who spoke up on behalf of the wife?"

Answer: "The court attendant"

OPTIONS:
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- yes
Answer: no

Problem: (CNN) -- Guatemala's government has declared a state of siege and sent hundreds of troops to a northern province where officials say a Mexican drug gang is overtaking towns and threatening residents. President Alvaro Colom announced the 30-day emergency rule in Alta Verapaz on Sunday. The rule allows the military to order anyone suspected of conspiring against the government to be arrested and imprisoned without a warrant, the state-run AGN news agency said. "Starting today, combined forces will retake the streets of Alta Verapaz," a government statement released Sunday morning said. Government data shows cells of the drug gang known as Los Zetas are in the area to protect drug trafficking paths between Honduras and Mexico, "intimidating the population with their heavy weapons and threatening farmers to give up their land for criminal activities," AGN reported. The state of siege also allows the government to place greater restrictions on public gatherings, travel visas and gun licenses, among other things, according to AGN. "The population should be calm. What we are doing is not intended to persecute honest, working people," Interior Minister Carlos Menocal told reporters. Menocal said operations in the coming days would aim to boost regional security, regain control of territory, identify criminal gangs and capture their members. In an interview with CNN en Espanol last month, Menocal said his country needed more help from the United States to combat cartels, which were increasingly carving out new drug transport paths. "In the end, the large majority of drugs travel through Central America, and the assignment of resources or the financial support of the United States government is not the same as Colombia and Mexico receive," he said. Menocal said clashes between authorities and Los Zetas had notably increased.

Question: "With whom have Guatemala government clashes increased?"

Answer: "Honduras"

OPTIONS:
- no
- yes
Answer:
no