Answers created by Peter
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How big is the universe? Is there a end?
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How would you explain the four fundamental forces of the universe?
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How does incoming solar radiation change with latitude?
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Question #120fd
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If the middle our of galaxy is a black hole, then why in pictures does it look like a huge star?
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Who were the Tuskegee Airmen?
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Where did most immigrants come from between 1890 and 1920 to the United States?
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Which theme was common to the diplomatic policies of presidents Roosevelt, Taft, and Wilson?
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What did the states have to do before the U.S. Constitution could take effect?
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Why was the Battle of Coral Sea a victory for the United States?
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Why did the Founding Fathers create two houses in the legislative branch?
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How did fundamentalist beliefs lead to the Scopes trial?
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Question #aa7b6
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Why were political machines effective?
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Why did Samuel Adams label the violence in Boston as a massacre?
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Did the lack of observable parallax help convince astronomers Earth did not move?
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Question #92d0e
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What is Earth's maximum velocity away from the centre of the universe, when our orbit around the sun, the sun's orbit around the galaxy and the movement of the galaxy itself are all in alignment?
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How many galaxies are there in the universe? How were they discovered? How many have been discovered?
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What makes stellar parallax easier to observe?
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If a star dies once it stars producing iron, how much iron would have to be manually inserted to destroy a star? And would it be possible to send iron into a star, or would it melt and not work?
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How has the Hubble Space Telescope changed our view of the universe?
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What are the four natural forces characteristics? What are the three types of friction from greatest to least?
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How can gravitational lensing be used to find planets?
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Question #3c233
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How does parallax relate to triangulation?
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How is the size of the universe determined?
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How is the universe expanding if it is infinite?
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What was President's Roosevelt impact on U.S. foreign policy?
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What was Eisenhower's response to the growing strength of the Vietcong?
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What was the importance of the "Yalu river" in the Korean War?
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Why did the nation's business boom bypass the South?
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Why was General McClellan considered to be an ineffective leader?
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Why was Rosa Parks called the "mother of the civil rights movement"?
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What is spectroscopy? How does it detect the electromagnetic spectrum?
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How do you calculate the radial velocity of a galaxy?
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How do you read spectrograms?
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What was the probability that a planet like earth would be created after the Big Bang? What are the chances another planet like earth exists?
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What are convection currents and how do they relate to the movement of the tectonic plates?
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Why don't the planets orbit the sun in perfect circles?
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How do we have pictures of our own milky way galaxy if we live in it?
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What happens after two galaxies collide?
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Which would look brighter, a big star or a small star?
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Why does Mars have no tectonic plates?
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Is space expanding within superclusters of galaxies?
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What is the life span of planet Earth with scientific predictions and humans taken into account?
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What are the disadvantages of parallax?
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What is 5 feet beyond the edge of the than the universe?
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What ways can we observationally probe what is happening inside of stars as they evolve off the main sequence and thereby directly test the predictions of stellar evolution theory?
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Is the universe expanding in one direction?
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How big was the universe at the time of the Big Bang?
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How many particles are there in the universe?
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How many stars are there in the entire universe?
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Why do the spectra of quasars imply that they are extremely distant objects?
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How do supermassive black holes form?
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How much energy does the coronal mass ejection loose as it approaches a distance like the Earth's orbit?
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What would happen is a black hole was in the path of a gamma ray burst?
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Question #4ea75
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Until 1969, imported oil had never been more than 19.8 percent of the total amount of oil consumed in the United States. What happened to U.S. reliance on imported oil in the 1970s?
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Why did America's founders adopt constitutional democracy as the political system?
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How can solar wind affect astronauts?
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What happens to a star's nuclear energy generation change if the core decreases in temperature?
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How do the four fundamental forces play into earth's formation?
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How do astronomers calculate the expansion of the universe?
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Do supermassive black holes cause galaxy rotation?
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How did galaxies form in the early universe?
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How is data sent to earth from satellites?
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Does a red supergiant have much more or less gravity than there is on Earth?
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How do fundamental forces affect matter?
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How do astronomers explain the size of the universe?
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What is the Big Bang Theory? What other theories are there about the formation of the universe?
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What lies between galaxies?
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How is electromagnetic energy produced?
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As a star ages, does the ratio of He atoms to H atoms in its composition become larger, smaller, or remain constant?
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What are the odds of there being another 'Earth' in Space?
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How long does the birth of a star take?
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What movements in the late 1800s addressed urban problems?
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Why did the Equal Rights Amendment never pass?
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Why was Plymouth Colony located at Massachusetts?
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What is the significance of the War Powers Act of 1973?
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What is on the other side of a black hole? Can it take you somewhere?
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What prevents a galaxy from disbanding?
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Why do you think that control of Boston early in the Revolutionary War was important?
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What did the Townshend Acts (1767) do?
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Why was the attitude of Great Britain so important to the outcome of the Civil War?
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How did King George's feelings toward the colonies change after the Boston Tea Party?
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How do fundamental forces work in nature?
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How do scientist theorize the earth was created?
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How does gravity affect the life cycle of stars?
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Does the universe rotate?
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What would happen if the Earth's axial tilt were to decrease from 23.5 degrees to 21.5 degrees?
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What would the Confederacy gain by receiving British recognition?
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What was expected of the colonists through the new Quartering Act passed in 1774 as part of the Coercive Acts (Intolerable Acts)?
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Did most wealthy immigrants go to Ellis Island?
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When was the first Thanksgiving celebration? What really happened, contrary to popular belief?
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What did Congress raise the minimum hourly wage to during Kennedy's term?
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What city and in what year was the Constitution written?
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Which president desegregated the American military after World War II?
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Why did the Pilgrims and Puritans leave Europe for the Americas?
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Question #437d6
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