Question: Ann Arbor was founded in 1824, named for wives of the village's founders and the stands of Bur Oak trees. The University of Michigan moved from Detroit to Ann Arbor in 1837, and the city grew at a rapid rate in the early to mid-20th century. During the 1960s and 1970s, the city gained a reputation as a center for left-wing politics. Ann Arbor became a focal point for political activism and served as a hub for the civil-rights movement and anti-Vietnam War movement, as well as various student movements.
Is there an answer to this question: During the 1950's and 60's, Ann Arbor gained a reputation for what?

Answer: unanswerable

Question: Libraries and museums have been established for other presidents, but they are not part of the NARA presidential library system, and are operated by private foundations, historical societies, or state governments, including the Abraham Lincoln, Rutherford B. Hayes, William McKinley, Woodrow Wilson and Calvin Coolidge libraries. For example, the Abraham Lincoln Presidential Library and Museum is owned and operated by the state of Illinois.
Is there an answer to this question: What state was Abraham Lincoln from?

Answer: unanswerable

Question: The capital city, Washington, District of Columbia, is a federal district located on land donated by the state of Maryland. (Virginia had also donated land, but it was returned in 1849.) The United States also has overseas territories with varying levels of independence and organization: in the Caribbean the territories of Puerto Rico and the U.S. Virgin Islands, and in the Pacific the inhabited territories of Guam, American Samoa, and the Northern Mariana Islands, along with a number of uninhabited island territories.
Is there an answer to this question: US territories of Puerto Rico Virgin Islands and Cuba are located where?

Answer: unanswerable

Question: Schwarzenegger signed another executive order on October 17, 2006 allowing California to work with the Northeast's Regional Greenhouse Gas Initiative. They plan to reduce carbon dioxide emissions by issuing a limited amount of carbon credits to each power plant in participating states. Any power plants that exceed emissions for the amount of carbon credits will have to purchase more credits to cover the difference. The plan took effect in 2009. In addition to using his political power to fight global warming, the governor has taken steps at his home to reduce his personal carbon footprint. Schwarzenegger has adapted one of his Hummers to run on hydrogen and another to run on biofuels. He has also installed solar panels to heat his home.
Is there an answer to this question: What year did the Greenhouse Gas Initiative go into effect?

Answer:
2009