Problem: Given the following passage "In the dicotyledons, the bundles in the very young stem are arranged in an open ring, separating a central pith from an outer cortex. In each bundle, separating the xylem and phloem, is a layer of meristem or active formative tissue known as cambium. By the formation of a layer of cambium between the bundles (interfascicular cambium), a complete ring is formed, and a regular periodical increase in thickness results from the development of xylem on the inside and phloem on the outside. The soft phloem becomes crushed, but the hard wood persists and forms the bulk of the stem and branches of the woody perennial. Owing to differences in the character of the elements produced at the beginning and end of the season, the wood is marked out in transverse section into concentric rings, one for each season of growth, called annual rings.", answer the following question. Note that the answer is present within the text. Question: what do the seasons have to do to create annual rings

A: differences in the character of the elements

Problem: Given the following passage "The war started badly for the US and UN. North Korean forces struck massively in the summer of 1950 and nearly drove the outnumbered US and ROK defenders into the sea. However the United Nations intervened, naming Douglas MacArthur commander of its forces, and UN-US-ROK forces held a perimeter around Pusan, gaining time for reinforcement. MacArthur, in a bold but risky move, ordered an amphibious invasion well behind the front lines at Inchon, cutting off and routing the North Koreans and quickly crossing the 38th Parallel into North Korea. As UN forces continued to advance toward the Yalu River on the border with Communist China, the Chinese crossed the Yalu River in October and launched a series of surprise attacks that sent the UN forces reeling back across the 38th Parallel. Truman originally wanted a Rollback strategy to unify Korea; after the Chinese successes he settled for a Containment policy to split the country. MacArthur argued for rollback but was fired by President Harry Truman after disputes over the conduct of the war. Peace negotiations dragged on for two years until President Dwight D. Eisenhower threatened China with nuclear weapons; an armistice was quickly reached with the two Koreas remaining divided at the 38th parallel. North and South Korea are still today in a state of war, having never signed a peace treaty, and American forces remain stationed in South Korea as part of American foreign policy.", answer the following question. Note that the answer is present within the text. Question: What is the long term result of the armistice

A: North and South Korea are still today in a state of war, having never signed a peace treaty

Problem: Given the following passage "In 2014, the league announced the granting of a new franchise to former Motley Crue frontman Vince Neil, previously part-owner of the Jacksonville Sharks. That franchise, the Las Vegas Outlaws, were originally to play in Las Vegas at the MGM Grand Garden Arena in 2015, but instead played their home games at the Thomas & Mack Center, previous home to the Las Vegas Sting and Las Vegas Gladiators. After 20 years as a familiar name to the league, an AFL mainstay, the Iowa Barnstormers, departed the league to join the Indoor Football League. The San Antonio Talons folded on October 13, 2014, after the league (which owned the team) failed to find a new owner. On November 16, 2014, despite a successful season record-wise, the Pittsburgh Power became the second team to cease operations after the 2014 season. This resulted from poor attendance. It was later announced by the league that the Power would go dormant for 2015 and were looking for new ownership.", answer the following question. Note that the answer is present within the text. Question: Who played at the Thomas and Mack Center instead of somewhere else?

A: Jacksonville Sharks

Problem: Given the following passage "Guinea-Bissau was once part of the kingdom of Gabu, part of the Mali Empire; parts of this kingdom persisted until the 18th century. Other parts of the territory in the current country were considered by the Portuguese as part of their empire. Portuguese Guinea was known as the Slave Coast, as it was a major area for the exportation of African slaves by Europeans to the western hemisphere. Previously slaves had been traded by Arabs north to the northern part of Africa and into the Middle East.", answer the following question. Note that the answer is present within the text. Question: Who later operated a slave trade in this region?

A:
Europeans