Read the following article and select the best answer. Article: Besides providing an ideal environment for sea plants and animals to live in, seawater has other values, one of which is that it constantly moves, and its movements produce energy. The most obvious movements are waves and the tides. Winds causes the waves, and the gravitational pull of the moon and the son causes tides. In places like the Bay of Fundy in Canada, the difference between the high and low tide level can be as much as 40 feet. France and Britain are now trying to use energy in the tides to produce electricity. Waves can produce electricity and some experiments are taking place to learn more about this. One of the most encouraging areas of research uses the difference between the temperature of seawater at the surface and deep down to produce electricity. Question: One of the values of seawater is that _ . - it has no plants in it - it pulls the sun and the moon - it flows all the time - it feeds all the time
it flows all the time

Read the following article and select the best answer. Article: A new system that scans customers' fingerprints and subtracts the grocery bill from their bank accounts has taken supermarkets in Germany to use the new system. "Almost a quarter of our customers pay with their fingers," said an employee at the headquarters. Edeka has tried the system at 70 of its supermarkets. It says it will introduce it at 200 others because customers like it. "At first we thought that only the young who really keep up with the latest technology would be interested, but we were wrong," said Stefan Sewoester from IT Werke. "Almost two-thirds of the people who use the system are 40 and older," he said. IT Werke, a computer company, is one of the pioneers of fingerprint payment software in Germany. It has helped about 150 shops, canteens and bars to put in the fingerprint scanning machines. Each costs about 2,000 euros. To sign up for the service, customers must have their fingerprints taken and leave their addresses and banking details with the shop. The shop then takes the cost of goods directly out of the customer's bank account. "It is especially a good thing for elderly people. Now they do not have to remember their pin to pay with their bank cards, or to scratch around for their glasses or cash." Sewoester said. The stores benefit from the system too. It saves more than time in the check-out line. It also cuts out the hidden costs of accepting electronic card payments. Question: According to the passage, the fingerprint system _ . - was invented by the Edeka supermarket chain - has caused payment revolution in Germany - is more popular with young people - is preferred by most American customers
has caused payment revolution in Germany

Q: Read the following article and select the best answer. Article: Just as the stock market rises and falls in response to what people are willing to put their money behind, we have inside ourselves an inner economy that rises and falls in response to our beliefs about what is possible. Sometimes the degree to which we are willing to challenge our belief systems determines the success of our inner economy. For example, imagine that your family of origin had a belief that musical talent was not something they possessed. As a member of that group, you would likely inherit that same belief about yourself. As a result, even if you had a great desire to create music, you might be hesitant to really get behind yourself, fearing that your investment would not pay off. Even if you had the courage to follow your passion, your inner belief that you are not inherently talented would probably be a major drawback to investing your energy in your dream. On the other hand, if you found a way to release that negative belief, a great flood of energy would pour forth, greatly increasing the likelihood of your success. How much energy we are willing to invest in the various ideas, dreams, and visions we carry within is like the money people are, or are not, willing to invest in the various products available for trade on the stock market. And in both cases, belief plays a key role in determining how willing we are to get behind something. One way to open up the possibility for greater success in our inner economies is to understand that belief is not the reliable guide we sometimes think. There are other more reliable things of success that we can put our faith in, such as passion, feeling, and sense. Some of the most successful investors in the stock market are the ones that go against the grain (to be something that one does not like doing), trusting their sense over the common opinion held by common people about what will work. In the same way, we can learn to trust our heart's desires and our sense to guide us, questioning any beliefs that stand in the way of our ability to fully invest... Question: According to the passage, if a family of origin has passion for literature, the members of the family will probably_. - teach literature - hate literature - write poems - enter the field of literature
A: enter the field of literature

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Read the following article and select the best answer. Article: Why should you tour Spain with SpainExchange? *We design and personalize your tour to fit your desires and needs. *We are Spain insiders: we are located in Spain and we know the country. You get the tour you want. You do not have to follow a schedule, but we encourage you to make your own with our help. If you have a few cities in Spain that you want to visit or a specific theme for your tour that needs some fine-tuning , we can do it for you. On the contrary, if you are not sure what's here and need some extra help, we can help you. We can assist you in developing the tour that fits you and your students. You get more for your money. Yes, it may cost you the same price as with the other companies--usually less--but you will receive more in return. With any other company you will be mixed with other groups. With SpainExchange, your tour is for yourself and your students only: your group alone will be in your bus; your students will be housed in double rooms; they will have 2 paid meals per day, and your entrance fees will be on us. Your students will have an educational experience they'll never forget. The students will learn about world history, not just Spanish history, art history, archeology, Spanish culture, and much more. Many students have "fallen in love" with Spain and make plans for future studies here. And teachers are amazed at how much Spain has to offer. As one teacher said, "I can't wait to come back and see the rest." Only a professional Spain insider that is flexible to design the tour that fits your group can provide all that for you. Just tell us what you want and enjoy the ride. Question: What is the advantage of SpainExchange over other touring companies? - It is designed for your personalized needs. - It is much cheaper than the tours from other companies. - It is organized by a Spanish-speaking agency. - It offers double rooms and 2 paid meals per day.
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It is designed for your personalized needs.