Question: Read the following article and select the best answer. Article: Animals are considered to be endangered if the species is close to extinction throughout all or most of its environment. Animals become endangered for a variety of reasons. Some animals become endangered when their habitats contain resources for humans. For example, commercial forest cutting in the Amazon Rainforest has seriously reduced the population of many animal species and lead to the extinction of other groups. Land itself is an important resource to humans since it provides us with living space, and when people replace animal habitats with human habitats, it can lead to larger loss of natural species. Commercial and industrial operations may reduce land or water for animals and pollute their environment. Due to water pollution, the baiji, a fresh water dolphin native to China, was declared extinct, meaning it's unlikely the population can recover. Even noise pollution from human activities can lead to the disorder of animal behavior. Another cause that makes animals become endangered is over-fishing or over-hunting. Over-hunting whales led to near extinction of many species of whales. The introduction of a non-native species to a habitat may make animals become endangered. The native species may not defend against a new one, and the effects can be dangerous. In Australia, the introduction of the common house cat led to the extinction of the red-fronted parakeet and has seriously damaged the populations of several small animals. Introduced species can also bring new diseases with them. As a result, animals become endangered. Native animals may not have the power to fight against non-native diseases, and population levels can suffer. Another cause of disease is human-introduced chemicals. The use of DDT is believed to be one of the leading causes in driving the California Condor to near extinction. When animals become endangered, the entire food chain can be affected. For example, in 2008 disease seriously harmed the honeybee, which is largely responsible for pollinating plants, including many fruits... Question: Which of the following examples shows that environmental pollution may cause species endangerment? - The extinction of the whales. - The extinction of the red-fronted parakeet. - The decreasing population of the dolphin. - The effect of the honeybee on the human diet.
Answer: The decreasing population of the dolphin.

Question: Read the following article and select the best answer. Article: Free and secure accommodation, no bills and even the odd home-cooked meal. It sounds like the perfect living arrangement for cash-strapped students. Two mothers believe they have devised a way for struggling students to save on accommodation costs when they leave home to study at university. Kate Barnham and Amanda Flude have launched Student Swaps, an online accommodation forum for parents and students, in advance of the introduction in September of PS3,000 higher education top-up fees. Their website says, "The principle behind Student Swaps is to enable students to literally swap family homes." The website will hold a database of students who would like to swap and link them with suitable matches. So those from one town / city could swap with those from a different town / city. The site describes itself as offering a "cost-free accommodation alternative... at a time of growing student debt". There is no charge for the service at the moment but Ms Barnham and Ms Flude intend to introduce a PS10 annual fee if it becomes established. However, the National Union of Students (NUS) has warned that, while the scheme may sound appealing to struggling freshers, it lacks any formal regulation. Veronica King, NUS vice-president of welfare, said, "The fact that this scheme has even been suggested is evidence to the high levels of debt students now face on graduation." Recent research has shown that students are more likely to live at home in coming years, in a bid to cut down on the cost of a degree. "This is worrying, as it may mean that students choose their university on the basis of where it is, rather than because it offers the best course for them. It also means students will miss out on what is for some a key part of the student experience-living away from home." Question: A "cash-strapped" student means one who _ . - lacks money - prefers to stay at home - is careful with money - wants to change cash
Answer: lacks money

Question: Read the following article and select the best answer. Article: Four American college students learned last week that free music downloads can carry a hidden price tag --- US $ 12,000 to $ 17,500, to be exact. Major record companies accused the students of fueling music piracy by running file-sharing networks on campus allowing hundreds of songs to be downloaded for free. Last Thursday, the four promised not to violate the companies' copyrights. Although they did not admit any wrongdoing, they each agreed to pay thousands of dollars to the Recording Industry Association of America (RIAA). "I don't believe that I did anything wrong," said Daniel Peng at prefix = st1 /PrincetonUniversity, one of the four. "I hope that for the sake of artists, the larger issues can soon be resolved." None appears to have made any money off the file-sharing systems they operated, which were confined to their campus's computer networks. The payments mark the first time record companies have recovered money from individuals in the USaccused of piracy on file-sharing networks. This may be a sign of things to come, as the industry starts taking its battle against online piracy directly to users. Many record-company executives blame the long slump in CD sales on file-sharing networks, which let users copy songs from each other's computers for free. Matt Oppenheim, senior vice president of business and legal affairs for the RIAA, said the settlements, although well below what the companies could have asked for, were "the right amount" given the situation. He also noted that since the four lawsuits were filed, at least 18 campus file-sharing networks have been taken down by their operators. Question: What's the main idea of the whole passage? - The students should be responsible for their behavior. - It's too late for record companies to protect their rights. - Record companies have taken action to protect their copyrights by accusing individuals of piracy on file-sharing networks. - Some record companies wanted to earn money by accusing people of pirating music.
Answer:
Record companies have taken action to protect their copyrights by accusing individuals of piracy on file-sharing networks.