1. How does the writer develop his main ideas about global warming in terms of organization? Answer: The writer develops his main ideas about global warming mainly through the structure of cause-effect. 2. Which structure does the writer use to illustrate the effects of global warming? Answer: The writer illustrates the effects of global warming through the structure of classification. 3. How does the writer arrange the effects and what are the signal words? Answer: The effects are arranged from the most obvious to least obvious, and signal words include: the most prominent effect of global warming, another area affected by global warming, a third type of evidence of global warming. 4. How many types of causes of global warming does the writer classify into? What are they? Answer: Four types. They are carbon dioxide, methane, nitrous oxide and chlorofluocarbons. 5. How is Paragraph 11 organized? What are the signal words? Answer: Paragraph 11 follows the pattern of problem-and-solution. The signal words are “a common problem that arises is ”. 6. According to the writer, what are the three areas affected by global warming? Answer: The most prominent effect of global warming exists in the climate change over the past years. Another area affected by global warming is the animal kingdom and nature. A third type of evidence of global warming can be found in plants. 7. What are the four gases that have a large impact in the atmosphere? Answer: Carbon dioxide, methane, nitrous oxide, and chlorofluocarbon. 8. According to some scientists, how many percent of the Great Barrier Reef will disappear by 2075 if the earth continues on the path it is on? Answer: Some say that if the earth continues on the path it is on, then 95 percent of the Great Barrier Reef will disappear by 2075.