Plants also detect the daily cycle of light and darkness. Do you know how plants respond to these changes? Some plants open their leaves during the day. It is during these hours the plant can collect sunlight. At night, the plant closes its leaves to prevent water loss. Many plants respond to the change in the length of the day. As days grow shorter, some plants respond by going dormant. Dormant is when a plant suspends its growth. It does this in order to survive. Shorter days signal the coming of winter. Winter in most areas means extreme cold. It is also very dry in the winter months. As winter approaches, some plants respond by their leaves changing color. After the change in color, they fall off. This dormancy period helps trees. It allows them to survive the cold and dry winter. Plants only want to grow when conditions are right.

Question: "What happens to some plants' leaves after they change color as winter approaches?"

OPTIONS:
- no
- yes

Answer: "The leaves turn green again"

Response: no

When Alexander destroyed Tyre, most of the towns on the route to Egypt quickly capitulated. A later tradition recorded his entry into Jerusalem: according to Josephus, Alexander was shown the Book of Daniel's prophecy, presumably chapter 8, which described a mighty Greek king who would conquer the Persian Empire. He spared Jerusalem and pushed south into Egypt. However, Alexander met with resistance at Gaza. The stronghold was heavily fortified and built on a hill, requiring a siege. When "his engineers pointed out to him that because of the height of the mound it would be impossible... this encouraged Alexander all the more to make the attempt". After three unsuccessful assaults, the stronghold fell, but not before Alexander had received a serious shoulder wound. As in Tyre, men of military age were put to the sword and the women and children were sold into slavery. Alexander advanced on Egypt in later 332 BC, where he was regarded as a liberator. He was pronounced son of the deity Amun at the Oracle of Siwa Oasis in the Libyan desert. Henceforth, Alexander often referred to Zeus-Ammon as his true father, and after his death, currency depicted him adorned with rams horn as a symbol of his divinity. During his stay in Egypt, he founded Alexandria-by-Egypt, which would become the prosperous capital of the Ptolemaic Kingdom after his death.

Question: "Who spared Jerusalem and pushed south into Egypt?"

Response: "Amun"
OPTIONS:
- no
- yes

A: no

Problem: (CNN) -- A Christian evangelical group said Thursday that a Bible school -- backed by American evangelist Franklin Graham -- was destroyed in the latest bombing raid to hit South Kordofan, an oil-rich Sudanese province that borders the newly created independent country of South Sudan. At least eight bombs were dropped in the area Wednesday during the school's first day of classes, according to a statement by Samaritan's Purse, Graham's Christian humanitarian group, which supports the school. Two bombs landed inside the compound -- located in the region's Nuba Mountains -- destroying two Heiban Bible College buildings and igniting grass fires across the area, the group said in a statement No injuries were reported. "It was a miracle that no one was injured," the statement added. Graham, who has called on the international community to take out Sudan's air assets and establish a no-fly zone in the region, said in a statement Thursday that he blamed Sudan's air force for the strike. At least four churches have been destroyed since August, the group said. "We are deeply concerned for the welfare and lives of the people of South Kordofan and we condemn the bombing of churches and Christian facilities," added Graham, son of the famed Rev. Billy Graham. More than 78,000 people have fled South Kordofan and Blue Nile states since August of last year after an armed rebellion took root, the United Nations reported. The Sudanese government is thought to have responded to the rebellion by conducting sustained air raids with the use of Russian-made Antonov bombers, which have raised concerns over civilian casualties. Decades of civil war between the north and south, costing as many as 2 million lives, formally ended with a U.S.-brokered peace treaty in 2005.

Question: "What type of school was destroyed in South Kordofan's Nuba Mountains?"

Answer: "Army camp"

OPTIONS:
- no
- yes
Answer: no

Question:
Take a look at this train in Figure 1.11. It looks very futuristic. What do you notice about it? Did you notice that the train has no wheels? How can a train have no wheels? It doesn't need wheels. It actually floats, or levitates, just above the track. Magnets enable the train to do this. This is not a normal train. This is a maglev train. The word maglev stands for magnetic levitation. Because it has no wheels, there is no friction. Some magnets hold the train up. Other magnets are used to move the train forward. This train can go very fast. It can reach speeds up to 480 kilometers (300 miles) per hour! Magnets are pretty cool. What exactly is a magnet? How is it able to exert such force? After reading the above, is "Magnets enable the train to levitate or float" the correct answer to the question "How does the train work without wheels?"? OPTIONS:
- no
- yes

Answer:
yes

You will remember the name of Garibaldi, the Italian patriot, who with Mazzini had been stirring up trouble for the Austrians. They finally pursued him so closely that he had to leave Italy. He came to America and set up a fruit store in New York City, where there were quite a number of his countrymen. By 1854, he had made a great deal of money in the fruit business, but had not forgotten his beloved country, and was anxious to be rich only in order that he might free Italy from the Austrians. He sold out his business in New York, and taking all his money, sailed for Italy. When the war of 1859 broke out, he volunteered, and fought throughout the campaign. But the compromising terms of peace galled him, and he was not satisfied with a country only half free. In the region around Genoa, he enrolled a thousand men to go on what looked like a desperate enterprise. Garibaldi had talked with Cavour, and between them, they had schemed to overthrow the kingdom of the Two Sicilies and join this land to the northern country. Of course, Cavour pretended not to know anything about Garibaldi, for the king of Naples and Sicily was supposed to be a friend of the king of Sardinia. Nevertheless, he secretly gave Garibaldi all the help that he dared, and urged men to enroll with him.

Question: "Who fought in the war of 1859?"

OPTIONS:
- no
- yes

Answer: "The King of Sardinia"

Response:
no