Problem: The documentary portrays a behind-the-scenes look at the poor state of Argentina's civil aviation , and puts the blame on the Argentine Air Force . The Air Force has been in control of air traffic operations since the military takeover of General Juan Carlos Ongan a in 1966 . The producer/director , Enrique Pi eyro , claims Argentina and Nigeria are the only countries whose air force controls and regulates the airline industry . Pi eyro , a former Argentine airline pilot , makes his case in the documentary using diagrams , 3D animations , interviews , hidden cameras in the control tower , and a few props . For example , at one point he spills out a bag of plastic airplanes and equates it to the number of planes the air force has lost due to negligence . The film is heavily based on the Austral L neas A reas Flight 2553 plane crash . Enrique Pi eyro takes his camera , secretly , into the control tower of the Ministro Pistarini International Airport also-known-as Ezeiza , the international airport at Buenos Aires .

Question: "What is one type of prop the director uses to prove a point?"

Answer: "Plastic blocks"

OPTIONS:
- no
- yes
Answer: no

Problem: Sound waves are mechanical waves. They can travel only through matter. They cannot travel through empty space. This was demonstrated in the 1600s by a scientist named Robert Boyle. Boyle placed a ticking clock in a sealed glass jar. The clock could be heard ticking through the air and glass of the jar. Then Boyle pumped the air out of the jar. The clock was still running, but the ticking could not be heard. Thats because the sound couldnt travel without air particles to transfer the sound energy. Is there any other place where sound cannot be heard? Here is a hint: is there any other place that does not have air molecules? Thats right, in space sound cannot be transferred. So can astronauts hear each other? Yes, they can, because they are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules. If they left their space ship and did not use their electronics, they would not be able to hear each other. Next time you watch a science fiction movie, think about this factoid. When spaceships are destroyed by hostile alien beings, there would be no sound heard. Sound waves can travel through many kinds of matter.

Question: "How do astronauts hear each other?"

Answer: "They are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules, but if they left their spaceship and did not use their electronics, they would not be able to hear each other."

OPTIONS:
- no
- yes
Answer: yes

Problem: Also on Feb. 12, a week before the ice dancing finals, Tokhtakhounov told Anissina's mother in a telephone call that the Russian federation official "had called me from America" to assure that "we are going to make" Anissina "an Olympic champion." He told her that the Russian skating federation official "will help -- he has two or three judges." On or about March 7, in a conversation between Tokhtakhounov and Anissina, she said she would have won the event without his assistance because the Russian judge did not vote for her and her partner. She also apologized for not calling to thank him earlier, but that Gailhaguet had forbidden her. She told Tokhtakhounov that she knew the FBI had interviewed Gailhaguet because of information that Tokhtakhounov "was involved with the results" of the ice dancing. He assured her that it was nonsense, but that Gailhaguet "knows my name very well -- he tried to help me, and later he made stuff up to scare you so you would not connect me to him even more." The conversations seem to indicate a familiarity between Tokhtakhounov and Anissina. Tass, the official Russian news agency, reported that Anissina attended a ceremony in 1999 at a Paris hotel honoring Tokhtakhounov for his philanthropy. That Russian organized crime may have infiltrated international sport at the Olympics stunned Phyllis Howard, president of the U.S. Figure Skating Association. "This is a criminal act and it certainly puts things in a different league," Howard said. Lloyd Ward, chief executive officer of the U.S. Olympic Committee, said in a statement, "Competitors from all nations must be assured that they compete on a level playing field."

Question: "Which news agency ran a story that implied Russian organized crime may have infiltrated international sport at the Olympics?"

Answer: "CNN World"

OPTIONS:
- no
- yes
Answer:
no