6.29 (Global Warming Facts Quiz) The controversial issue of global warming has been widely publicized by the film An Inconvenient Truth, featuring former Vice President Al Gore. Mr. Gore and a U.N. network of scientists, the Intergovernmental Panel on Climate Change, shared the 2007 Nobel Peace Prize in recognition of “their efforts to build up and disseminate greater knowledge about man-made climate change.” Research both sides of the global warming issue online (you might want to search for phrases like “global warming skeptics”). Create a five-question multiple-choice quiz on global warming, each question having four possible answers (numbered 1–4). Be objective and try to fairly represent both sides of the issue. Next, write an app that administers the quiz, calculates the number of correct answers (zero through five) and returns a message to the user. If the user correctly answers five questions, display “Excellent”; if four, display “Very good”; if three or fewer, display “Time to brush up on your knowledge of global warming,” and include a list of some of the websites where you found your facts.

6.30 (Tax Plan Alternatives; The “FairTax”) There are many proposals to make taxation fairer. Check out the FairTax initiative in the United States at

http://www.fairtax.org

Research how the proposed FairTax works. One suggestion is to eliminate income taxes and most other taxes in favor of a 23% consumption tax on all products and services that you buy. Some FairTax opponents question the 23% figure and say that because of the way the tax is calculated, it would be more accurate to say the rate is 30%—check this carefully. Write a program that prompts the user to enter expenses in various expense categories they have (e.g., housing, food, clothing, transportation, education, health care, vacations), then displays the estimated FairTax that person would pay.