Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

Q: Paragraph- Sent 1: The digestive system is the body system that digests food.
Sent 2: It digest food in two ways, mechanically and chemically.
Sent 3: Both help in the process of turning food into nutrients.
Sent 4: The digestive system also eliminates solid food waste.
Sent 5: The major organs of the digestive system include the mouth, esophagus, stomach, and small and large in- testines.
Sent 6: These organs all work together to help you gain energy from the food you eat.
Sent 7: Digestion starts in the mouth.
Sent 8: When food is swallowed, it travels through the esophagus to the stomach.
Sent 9: In the stomach, digestion continues and a small amount of absorption of nutrients takes place.
Sent 10: Most chemical digestion and nearly all absorption of nutrients take place in the small intestine.
Sent 11: This organ consists of three parts: duodenum, jejunum, and ileum.
Sent 12: The large intestine is the last stop in the digestive system.
Sent 13: This is where water is absorbed.
Sent 14: The food not digested is released as waste.
Question: Why is the digestive system important?.

A: Organs all work together to help you gain energy from the food you eat.
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Q: Paragraph- Sent 1: Spain's Golden Age: Under Ferdinand and Isabella, Spain underwent a dramatic transformation.
Sent 2: In 1492 the royal pair presided over the final conquest over the Moors and discovery of the New World, including the great wealth that feat brought to Spain.
Sent 3: Spain flourished during a Golden Age, a century of Spanish economic and political supremacy in international affairs, accompanied by marvels of art and literature.
Sent 4: Ferdinand and Isabella were consummate Spaniards, committed to the expansion of the crown.
Sent 5: By contrast, their grandson, who assumed the throne in 1516, was born in Flanders in 1500, and Charles I could barely express himself in Spanish.
Sent 6: The first of the Habsburgs, he packed his retinue with Burgundian and Flemish nobles.
Sent 7: Soon after his arrival in Spain, the young man inherited the title of Holy Roman Emperor, as Charles V. The responsibilities of the crown kept him busy away from the royal residences of Toledo, Segovia, Valladolid, and Madrid.
Sent 8: While the monarch was away on one of his many business trips, his increasingly dissatisfied subjects protested violently.
Sent 9: A revolt of the comuneros, or townsmen, broke out in a number of Spanish cities, including Madrid.
Sent 10: The rebels occupied the alcazar, which had by then been converted to a royal palace.
Sent 11: The insurrection was quashed and its leaders executed, but the king got the message.
Sent 12: He tried thereafter to pay more attention to his Spanish constituency.
Question: What forced Charles V to pay more attention to Spanish constituency?.

A: A revolt of the comuneros who occupied the alcazar (a royal palace).
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Q: Paragraph- Sent 1: He repeatedly calls on his followers to embrace martyrdom since "The walls of oppression and humiliation cannot be demolished except in a rain of bullets."Sent 2: For those yearning for a lost sense of order in an older, more tranquil world, he offers his "Caliphate" as an imagined alternative to today's uncertainty.
Sent 3: For others, he offers simplistic conspiracies to explain their world.
Sent 4: Bin Laden also relies heavily on the Egyptian writer Sayyid Qutb.
Sent 5: A member of the Muslim Brotherhood executed in 1966 on charges of attempting to overthrow the government, Qutb mixed Islamic scholarship with a very superficial acquaintance with Western history and thought.
Sent 6: Sent by the Egyptian government to study in the United States in the late 1940s, Qutb returned with an enormous loathing of Western society and history.
Sent 7: He dismissed Western achievements as entirely material, arguing that Western society possesses "nothing that will satisfy its own conscience and justify its existence."Sent 8: Three basic themes emerge from Qutb's writings.
Sent 9: First, he claimed that the world was beset with barbarism, licentiousness, and unbelief (a condition he called jahiliyya, the religious term for the period of ignorance prior to the revelations given to the Prophet Mohammed).
Sent 10: Qutb argued that humans can choose only between Islam and jahiliyya.
Sent 11: Second, he warned that more people, including Muslims, were attracted to jahiliyya and its material comforts than to his view of Islam; jahiliyya could therefore triumph over Islam.
Sent 12: Third, no middle ground exists in what Qutb conceived as a struggle between God and Satan.
Sent 13: All Muslims-as he defined them-therefore must take up arms in this fight.
Sent 14: Any Muslim who rejects his ideas is just one more nonbeliever worthy of destruction.
Sent 15: Bin Laden shares Qutb's stark view, permitting him and his followers to rationalize even unprovoked mass murder as righteous defense of an embattled faith.
Sent 16: Many Americans have wondered, "Why do 'they' hate us?"Sent 17: Some also ask, "What can we do to stop these attacks?"Sent 18: Bin Laden and al Qaeda have given answers to both these questions.
Question: Approximately how long after studying in the United States was Sayyid Qutb executed?.

A:
15 - 20 years.
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