Imagine you are standing in a farm field in central Illinois. The land is so flat you can see for miles and miles. On a clear day, you might see a grain silo 20 miles away. You might think to yourself, it sure is flat around here. If you drive one hundred miles to the south, the landscape changes. In southern Illinois, there are rolling hills. Why do you think this is? What could have caused these features? There are no big rivers that may have eroded and deposited this material. The ground is capable of supporting grass and trees, so wind erosion would not explain it. To answer the question, you need to go back 12,000 years. Around 12,000 years ago, a giant ice sheet covered much of the Midwest United States. Springfield, Illinois, was covered by over a mile of ice. Its hard to imagine a mile thick sheet of ice. The massive ice sheet, called a glacier, caused the features on the land you see today. Where did glaciers go? Where can you see them today? Glaciers are masses of flowing ice.

Question: "What couldn't the erosion have been caused by?"

OPTIONS:
- no
- yes

Answer: "Lakes"

Response: no

On a busy Friday morning in Manhattan, nine pedestrians suffered bullet or fragment wounds after police unleashed a hail of gunfire at a man wielding a .45 caliber pistol who had just killed a former co-worker. The officers unloaded 16 rounds in the shadow of the Empire State Building at a disgruntled former apparel designer, killing him after he engaged in a gunbattle with police, authorities said. Three passersby sustained direct gunshot wounds, while the remaining six were hit by fragments, according to New York Police Commissioner Ray Kelly. All injuries were caused by police, he said Saturday. One officer shot nine rounds and another shot seven. Police identified the gunman as Jeffrey Johnson, 58, who was apparently laid off from his job as a designer of women's accessories at Hazan Import Co. last year. Johnson, who served in the U.S. Coast Guard in the mid-1970s, had two rounds left in his pistol. It holds eight, Kelly said. Police identified the slain co-worker as Steven Ercolino, 41, who had apparently filed a prior complaint against his assailant, claiming that he thought Johnson would eventually try to kill him. Both men had filed harassment complaints against each other in April 2011, Kelly added. Ercolino was listed as a vice president of sales at Hazan Import Corp., according to his LinkedIn profile. "It's not something that should happen to a loving person like that," said his brother, Paul. "He's going to be so missed by everybody. He was a light of so many lives."

Question: "Who was interviewed about Ercolino's death?"

Response: "His brother"
OPTIONS:
- no
- yes

A: yes

Problem: Surely, you have noticed the tall poles along the roadside. Do you know what is on top of those poles? Thats right, wires that carry electric current. These wires carry electric current to your home. But what is electric current? Electric current is actually the flow of electrons. You may recall, an electron is the outer-most particle in an atom. They have a negative charge. Electricity is the continuous flow of these particles. Electrons are able to move through wires. Their speed can even be measured. The SI unit for electric current (or speed) is the ampere (A). Ampere is often shortened to amp. Electric current may flow in just one direction, or it may keep reversing direction. Direct current (DC) flows in only one direction. Direct current is what is used in devices like flashlights. Alternating current (AC) flows in two directions. This is the type of current that flows into your home through wires.

Question: "What kind of particles are carried in the wires at the top of the tall poles along the roadside?"

Answer: "Electrons"

OPTIONS:
- no
- yes
Answer: yes

Question:
Powell contended that it was not inconsistent to want to foster cooperation even with an organization like the Indonesian military, which has a history of human rights abuses. "If you get young officers, expose them to a military organization that is within a democratic political institution, such as the United States, then that rubs off on them," he said. In Malaysia, Powell met with Prime Minister Mahathir Mohamad, who has led the country since 1981. The Malaysian foreign minister, Syed Hamid Albar, later told local reporters that Powell had proposed that American and Malaysian officials review the idea of forming a regional training center in Malaysia to coordinate antiterrorism activities. His brief stop in Malaysia also highlighted the moral ambiguities of the effort to prevent terrorism and its emphasis on cooperation with governments that the United States has often criticized. The United States once distanced itself from Mahathir for strong-arm tactics with political rivals, and human rights groups criticize him for arresting and jailing scores of suspected militants, including some who may be linked to al-Qaida, without trial. Powell said his discussions with Mahathir "touched on the case" of his former deputy, Anwar Ibrahim, who is serving a 15-year sentence on charges of sodomy and abuse of power after trials that Powell said the United States had "always felt" were flawed. The assistant secretary of state for East Asian and Pacific affairs, James Kelly, met on Tuesday morning with Anwar's wife, Wan Azizah Wan Ismail, for what she later told Malaysian reporters was a discussion about both the detention of her husband and six supporters, and the campaign against terrorism. After reading the above, is "He is serving a 15 year sentence on charges on sodomy and abuse of power" the correct answer to the question "Who is Wan Azizah Wan Ismail?"? OPTIONS:
- no
- yes

Answer:
no

Responding to a wave of public dismay over the first designs for rebuilding Lower Manhattan, Gov. George Pataki has sent word that it's time to go back to the drawing board. It is the right message, sent while it is still early enough to do something constructive about the disappointing quality of the work so far. The governor, like Mayor Michael Bloomberg, now seems committed to creating a better mix of uses for ground zero, and a 24-hour community in Manhattan's downtown. While rethinking the plans will delay the original rebuilding schedule slightly, it does not need to stall progress if the governor keeps the pressure on the Lower Manhattan Development Corp. and the Port Authority of New York and New Jersey. New York cannot afford to have a gaping hole that mocks the city and its process for rebuilding what was destroyed. Pataki openly questioned the Port Authority's requirement that any plan for the site replace all the office, hotel and retail square footage lost in the attack on Sept. 11. More than anything else, that specification limited the designs to the undistinguished options presented two weeks ago. Renegotiating that issue with the World Trade Center leaseholders should begin immediately. Opening the process to other designers, both here and internationally, will help separate this urban plan from the ordinary. The city also needs to begin openly discussing what happens underground, in particular with the transportation network. At this point, planners have focused on short-term repair of PATH and subway lines, with medium-range proposals being shopped in Washington that could untangle the disorganized web of subway lines downtown. Within the next few weeks the Lower Manhattan Development Corp. and the Port Authority should offer some bigger ideas about how to connect the downtown area better to the rest of the region. Lowering West Street alongside the World Trade Center site and building a park or esplanade on top is another option that has been popular with those reviewing the first six public proposals. But it would be expensive, and the governor, the mayor and their friends in Washington will have to look at long-range ways to pay the bill. Pataki's recent remarks are a sign that he understands how central the rebuilding of Lower Manhattan will be to his own political legacy. Now he needs to follow through with action, to keep demonstrating that his core concern is coming up with the best possible plan, not simply keeping the issue on hold until after this fall's election.

Question: "What is the issue in building a park on the world trade center site"

OPTIONS:
- no
- yes

Answer: "Expense"

Response:
yes