A coral reef is a ridge of living coral, coral skeletons, and calcium carbonate deposits from organisms such as calcareous algae, mollusks, and protozoans. The resulting structure provides a critical habitat for a wide variety of fish and marine invertebrates. Coral reefs also protect shores against erosion by causing large waves to break and lose some of their force before reaching land. More than 90% of the estimated 109,800 sq mi (284,300 sq km) of reefs in the world are in what region? Discuss
Source: The Free Dictionary
Though he was the only legitimate son of King Denis of Portugal, Afonso IV felt threatened by the apparent favoritism his father showed to his illegitimate half-brothers and spent the final years of his father’s life and reign in revolt. He succeeded to the throne in 1325 and, as history is doomed to repeat itself, found himself 20 years later the target of his own son’s rebellion against him. What had Afonso done to provoke his son’s rage? 
Patterned after the traditional event in Finland that celebrates 
One of the largest youth organizations in the US is the Boy Scouts of America, which promotes community service and character building. The scouts’ activities aim at mental, moral, and physical development, stressing outdoor skills and training in citizenship and lifesaving. Scouts receive recognition in the form of merit badges and awards. The basic scout unit is a troop of about 15 boys, under the leadership of an adult scoutmaster. How many of the 12 men to walk on the moon were Boy Scouts? 
The jelly bean is a type of confection that has a hardened sugar coating over a chewy center. “Turkish Delight,” a Middle Eastern candy consisting of jellylike cubes covered with powdered sugar, likely inspired the gummy interior of the jelly bean. It is generally thought that jelly beans first became popular in 1861 when Boston confectioner William Schrafft urged people to send his jelly beans to soldiers during the American Civil War. When did jelly beans become associated with Easter? 
More was an English lawyer, writer, and politician who earned a reputation as a leading humanist scholar. He held many public offices during Henry VIII’s reign, including that of lord chancellor. He is remembered for his book Utopia, which describes an ideal state founded entirely on reason, and for his principled refusal to accept the king as the head of the Church of England—a decision that resulted in his execution on the grounds of treason. What recognition was he accorded in 2000? 
This zany mid-winter festival celebrates the emergence of the 
The history of the European Union (EU) began soon after World War II, when there developed in Europe a strong revulsion against national rivalries and parochial loyalties. European strength and security seemed to lie in a united Europe, and the European Coal and Steel Company—established in 1952—was the first attempt at accomplishing such a union. In 1992, the Maastricht Treaty, formally the Treaty on European Union, officially established the EU. How many member states does the EU have?