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Here are some principles for people to stick to if they want to stay healthy.

 

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Spend just a minute watching the world population counter tick up on Worldometers and you’ll see just how quickly we’re swelling in numbers. The current figure stands at around 7.7 billion, and this is projected to become 9.8 billion by 2050, according to the UN. More people means more carbon footprints - more cars, waste and emissions, more houses and infrastructure to be constructed using the world’s limited resources, more mouths to be fed using more water and energy in food production. Governments recognise the severity of the situation and have mostly come together over global policies like the UN’s Paris Agreement, to limit carbon emissions and their impact on climate change. In addition, new technologies are being developed to make our use of resources more efficient. As for controlling population growth, the education of women is one key factor. Research shows the higher level to which a woman is educated, the fewer children she is likely to have. In Ghana, for example, women who have been to high school, have a fertility rate of between two and three children, compared with six for those who have no education. This could be for several reasons including learning about desired family size and understanding child health better. This means that the mother is more confident her children will survive. She is also likely to hold more sway within the family, arguing for fewer children if that is what she wants.  There is also plenty that individuals can do to reduce their personal footprint. Earth Overshoot Day is defined as the day when humanity has used up nature’s resource budget for the year. The Global Footprint Network calculates that moving Earth Overshoot day back by five days every year would mean that, by 2050, we’d be using the resources of less than one planet. Just eating 50% less meat and replacing it with vegetarian alternatives could save the planet five days. As David Attenborough says, if we want to save Earth, we can no longer afford to keep eating meat: “We are omnivores, so biologically, if you could have a biological morality, you can say, yes we evolved to eat pretty well everything. But now we’ve got to a stage in our own social evolution in which that is no longer practical.” Sir David says he himself now eats less meat and is bolstered by the knowledge that it’s helping the planet.  
1. Which best serves as the title for the passage?

Each sentence has a mistake. Find it bychosing A B C or D

: National Parks are usually located in places where have been largely undeveloped, and are often with exceptional native animals, plants, and unusual geological feature

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The United States has had approximately a thousand lights as well as light towers,  range lights, and pier head lights. Michigan has the most lights of any state with over 150 past and present lights. Most of the lights in the United States have been built and maintained by the Coast Guard. As navigation has declined and as public interest in them has increased, the Coast Guard has been handing over ownership to other parties. The first navigational lights in the New World were probably lanterns hung at harbor entrances. The first lighthouse was put up by the Massachusetts Bay Colony In 1766 on Little Brewster Island at the entrance to Boston Harbor. Paid for and maintained by light dues levied on ships, the original beacon was blown up in 1776. By then there were only a dozen or so true lighthouses in the colonies. Little over a century later, there were 700 lighthouses.  The first eight erected on the West Coast in the 1850’s featured the same basic New England design: a Cape Cod dwelling with the tower rising from the center or standing close by. In New England and elsewhere, though, lighthouses reflected a variety of architectural styles. Since most stations in the Northeast were built on rocky eminences, enormous towers were not the rule. Some were made of stone and brick, others of wood or metal. Some stood on pilings or stilts: some were fastened to rock with iron rods. Farther south, from Maryland through the Florida Keys, the coast was low and sandy. It was often necessary to build tall towers there - massive structures like the majestic Cape Hatteras, North Carolina lighthouse, which was lit in 1870. At 190 feet, it is the tallest brick lighthouse in the country. Notwithstanding differences in appearance and construction, most American lighthouses shared several features: a light, living quarters, and sometimes a bell (or, later, a foghorn). They also had something else in common: a keeper and, usually, the keeper’s family. The keeper’s essential task was trimming the lantern Nick in order to maintain a steady bright flame. The earliest keepers came from every walk of life-they were seamen. Farmers, mechanics, rough mill hands-and appointments were often handed out by local customs commissioners as political plums. After the administration of lighthouses was taken over in 1852 by the United States Lighthouse 803rd, an agency of the Treasury Department, the keeper corps gradually became highly professional.  
4. According to the passage, where can the tallest brick lighthouse in the United States be found?

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I/ can’t/ imagine/ life/ without/ science/ technology.

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As communities across the U.S. replace forests and woodlands with housing developments and other new construction, researchers are noting an increase in Lyme disease. To help prevent the spread of Lyme disease, Dr. Ivan Castro-Arellano, a disease ecologist and wildlife researcher at Texas State University, is exploring how urbanization and its effects on mammals impact the spread of pathogens.  Lyme disease, which spreads from animals to humans, is one of the fastest growing zoonotic diseases in the United States. Counties considered high-risk for Lyme disease grew 300% between 1993 and 2012. Caught quickly, Lyme disease is easily treated with antibiotics, but if it goes untreated it can lead to chronic issues such as Lyme arthritis, facial palsy and impaired memory. Many such zoonotic diseases have been increasing globally, researchers say, partially because of the displacement of animals. While medium- and large-sized mammals are displaced or eradicated by the removal of forested areas, whitefooted mice and deer thrive in small patches of green space. Mice and deer are contributing to favorable conditions for an increase in the ticks that spread the pathogens causing Lyme disease. Although East Texas has a similar pattern of woodland space compared to new construction as the northeast United States, Texas contract the disease at lower rates. This fact piqued the interest of Castro-Arellano. In addition to studying the area where the disease is prevalent, he decided to study where the disease is not prevalent to find keys to prevention. Castro-Arellano is part of a team of biologists, veterinarians and biomedical researchers that have been collecting samples and trying to understand what makes East Texas different. He believes that the climate, or certain species of East Texas mammals who kill ticks, could be contributing to the reduced tick population in East Texas.
4. The word “palsy” in paragraph 2 is closest in meaning to ______

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In order/ not/ have/ any/ digestive disease, you/ should/ eat/ healthily

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Alexander Hamilton was born on January 11, 1755 or 1757 in the West Indies. Due to his mother’s lack of marital status, Hamilton was not seen as a legitimate child and was thus denied access to church schools. When his mother died he was adopted by a merchant in Nevis, where he worked as a clerk. During his time in Nevis, Hamilton continued to write; one of his essays impressed the community leaders so much that they worked together and collected funds to send Hamilton to the colonies. Hamilton served in the revolutionary war, during which time he worked his way through battles and earned himself a place aiding General Washington. After the war, Hamilton was elected into the Congress of the Confederation. He was dissatisfied with the decentralized government that was set up and the inability to raise money from the states to pay the soldiers. Hamilton was involved in the Constitution Convention but did not fully agree with the document; despite his disagreements, he promoted the document because he believed it was a vast improvement over the Articles of Confederation. He pushed the ratification of the Constitution, teaming up with John Jay and James Madison to write the Federalist papers, which were often cited when pushing for the Constitution’s ratification. Alexander Hamilton was appointed as the country’s first Secretary of The Treasury on September 11, 1789. During his time as Secretary of the Treasury Hamilton helped write economic policies, develop the funding of state debts, establish the national bank, create a national currency, a system of tariffs, and a peaceful trade relationship with Britain. After his time in politics finished, Alexander Hamilton went back to New York to practice law. He died in a duel with Aaron Burr in Weehawken, New Jersey on July 12, 1804  
2. According to paragraph 1, what can be concluded from Alexander Hamilton’s childhood?

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions.

The poaching crisis wiping out Africa's elephants is costing the continent's economies millions in lost tourism revenue, according to a new study. Researchers looked at visitor and elephant data across 25 countries, and modeled financial losses from fewer visitors in protected areas due to the illegal wildlife trade, which has caused elephant numbers to plummet by more than 100,000 in the last decade. (A)

The study team combined visitor numbers across 164 protected areas in 25 countries in forest and savannah elephants, and elephant population data from 2009 to 2013, to reach a “per elephant" value in terms of tourism income.

They concluded that Africa was most likely losing $26m in tourism revenue a year. (B) Around $9m of that is lost from tourists' direct spending, such as staying at hotels and buying crafts, with the rest through indirect value in the economy such as farmers and other suppliers supporting the tourist industry.

The study, published in the journal Nature Communications, found that in most cases the revenue losses were higher than paying for stronger anti-poaching measures to keep elephant populations stable. (C) Dr. Robin Naidoo, the paper's lead author and , senior conservation wildlife scientist at WWF and his team found. In the case of central Africa's forest elephants, which are harder for tourists to see and therefore attract fewer visitors, the costs of protecting them exceed the benefits from tourism. Demand from south-east Asia has seen the price of ivory triple since 2009 and it is estimated that one elephant is killed every 15 minutes. (D) Corruption, a lack of resources, and, most importantly, increasingly sophisticated poachers have hamstrung African countries' efforts to stem the trade.

Naidoo said that the research was not suggesting economic issues should be the only consideration when protecting elephants, but framing the poaching crisis as a financial one could motivate African governments and communities.

“It gives an additional reason for some groups of people, who may not necessarily be motivated by intrinsic reasons for conversation, to engage with biodiversity conservation. It makes it clear to them that it's not just in the best interests of the world to conserve this stuff, but tangible reasons for a whole different group," he said.

Which of the positions marked in the passage does the phrase "but the financial argument did not stack up in all areas,” best fit?

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Do you find the American education system to be confusing and different from the education system in your own country? Do you want to attend a university or a school in the USA? The American education system offers international students the most diverse set of options in the world. In fact, an international student who elects to take advantage of the American education system can pursue anything from nuclear science to film and dance. The possibilities are almost endless! The American education system requires that students complete 12 years of primary and secondary education prior to attending university or college. This may be accomplished either at public (or government-operated) schools, or at private schools. These 12 years of schooling (or their equivalent) may also be completed outside the USA, thus giving foreign students the opportunity to pursue the benefits of the American education system and obtain a quality American education. Perhaps one of the most impressive facts is the large number of presidents, prime ministers and leaders from other countries who have experienced the American education system and graduated from a university or school in the USA. In many fields and industries, the American education system offers the most cutting-edge, soughtafter programs at the world’s best schools. That is why graduating from an accredited American school and being exposed to the rigors of the American education system is an investment in your future. Whether you want to study at a USA university, a top college, or at an ESL, vocational or high school, a thorough understanding of how the American education system works is essential. Without a clear grasp of the system, an international student will find it difficult to make the right academic choices. The information provided in the Overview of the American education system section will help you develop that understanding. You can also search our list of Universities, colleges, community colleges, graduate schools, and boys and girls boarding schools. It is no surprise that the United States hosts more international students than any other country in the world!  
3. Which of the following is true, according to the passage?

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If you think you left the cliques behind in high school, think again. When it comes to  building friendships, men are more likely to return to their clique-y roots than women, according to a recent study published in the journal PLOS One. Researchers found that, in general, men seek to join all-male cliques, clubs or teams, while women prefer a more select, one-on-one relationship with a few close female friends. “Much of male friendship is about coalition building,” said Tamas David-Barett, lead author of the research paper, and member of the experimental psychology department at the University of Oxford.  After analyzing the profile pictures of nearly 112,000 Facebook users worldwide, David-Barett and his co-authors found that men were more likely to post a profile picture showing themselves with a large group of male friends. The study notes that such pictures are “arguably an essential element of the male-male coalition competition.” Conversely, women almost never posted a large group profile picture, but tended to display a photo with only one other female friend. As the paper explained, women “appear more often to focus their social capital on only one person at a time.”  So why are men and women different in the way they make friends? One hypothesis is the difference between the male and female brain. Typically, women tend to have a larger deep limbic system than their male counterparts. The limbic system is a network of nerves in the brain connected to instinct and mood. The limbic system controls basic emotions such as happiness and fear. Because this system tends to be larger in women, females are more in touch with their feelings and have an increased ability to connect individually with others.  According to the Wall Street Journal, other research indicates that females tend to build friendships off of emotional connections and are more apt to share intimate conversations. The male friendship, however, is established by doing things together, such as watching the game or hosting a barbecue. “Female friendships are characterized as more face-to-face. Women want to share and exchange,” said Irene Levine, a friendship expert. “They want to bond. Men, however, want to do things together. They want to go to spectator sports; they want to participate in sports together. They do things that are more side-by-side.” 
3.  According to paragraph 2, what does the statistics imply about the distinction between males and females?

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Most people think that lions only come from Africa. This is understandable because in fact most lions do come from there but this has not always been the case. If we went back ten thousand years, we would find that there were lions roaming vast sections of the globe. However now, unfortunately only a very small section of the lion's former habitat remains.
Asiatic lions are sub-species of African lions. It is almost a hundred thousand years since the Asiatic lions split off and developed as a sub-species. At one time the Asiatic lion was living as far west as Greece and they were found from there, but in a band that spreads east through various countries of the Middle East, all the way to India. In museums now, you can see Greek coins that

have clear images of the Asiatic lion on them. Most of them are dated at around 500 B.C. However, Europe saw its last Asiatic lions roaming free two thousand years ago. Over the next nineteen hundred years the numbers of Asiatic lions in the other areas declined steadily, but it was only in the nineteenth century that they disappeared from everywhere but in India.
The Gir Wildlife Sanctuary in India was established especially to protect the Asiatic lion. There are now around three hundred Asiatic lions in India and almost all of them are in this sanctuary. However, despite living in a sanctuary, which makes them safe from hunters, they still face a number of problems that threaten their survival. One of these is the ever-present danger of disease. This is what killed more than a third of Africa’s Serengeti lions in 1994, and people are fearful that something similar could happen in the Gir Sanctuary and kill off many of the Asiatic lions there.
India's lions are particular vulnerable because they have a limited gene pool. The reason for this is interesting is because all of them are descended from a few dozen lions that were saved by a prince who took a particular interest in them. He was very healthy, and he managed to protect them; otherwise they would probably have died out completely.
When you see the Asiatic lion in India, what you sense is enormous vitality. They are very impressive animals and you would never guess that they have this vulnerability when you look at them.

Ten thousand years ago .

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Electronic devices are becoming increasingly common in educational environments. The term most commonly used for such devices is “educational technology”. This is not actually a new idea, as the rewritable wax tablets, often with lined surfaces to guide novice writers used in antiquity or the blackboard itself are both instances of technological innovations to support pedagogy. There are many different ways in which electronic devices are used in education. For example, students in STEM (science, technology, engineering medicine) fields have been making extensive use of sophisticated calculators for many years (the abacus and slide rule were non-electronic predecessors to calculators). In humanities as well as sciences, students use computers or equivalent devices to do research and write papers. In all fields, courses are now likely to have websites, and many instructors use course management software such as Blackboard, to post information for students, record grades, set up online discussions, and check for plagiarism. In lecture classes, many instructors project slides or notes on a screen and may even upload lecture notes so that students can review them. Some courses are hybrid, meaning that they have a strong online component, or offered entirely online. Many courses taught in conventional lecture halls are streamed online, and may use devices such as clickers to become more interactive. Any device (including tablets or cell phones) that instructors incorporate into a learning environment functions as educational technology.  
5. According to the passage, which of the following does NOT function as educational technology?

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Rachel Carson was born in 1907 in Springdale, Pennsylvania. She studied biology in college and zoology at Johns Hopkins University, where she received her master's degree in 1933. In 1936, she was hired by the US Fish and wildlife service, where she worked most of her life. Carson's first book, Under the Sea Wind, was published in 1941. It received excellent reviews, but sales were poor until it was reissued in 1952. In that year, she published The Sea Around Us, which provided a fascinating look beneath the ocean's surface, emphasizing human history as well as geology and marine biology. Her language had a poetic quality. Carson consulted no less than 1,000 printed sources. She had voluminous correspondence and frequent discussions with experts in the field. However, she always realized the limitations of her non-technical readers. In 1962, Carson published Silence Spring, a book that sparked considerable controversy. It proved how much harm was done by the uncontrolled, reckless use of insecticides. She detailed how they poison the food supply of animals, kill birds, and contaminate human food. At that time, spokes men for the chemical industry mounted personal attacks against Carson and issued propaganda to indicate that her findings were flawed. However, her work was vindicated by a 1963 report of the President's Science Advisory Committee.
4. It can be inferred from the passage that in 1952, Carson's book Under the Sea Wind...........

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Stonehenge, the prehistoric stone circle in southern England, is one of the most distinctive and mysterious monuments in the world. The monument, which attracted more than one and a half million visitors last year, is thought to be up to 5,000 years old, and the heaviest stone weighs 38 tons. No one really knows how the stones got there, or the reason they look the way they do – but a piece removed from one of the stones six decades ago could bring some answers. At first glance, the new “discovery” - a cylinder of rock - might look unremarkable. But for Lewis and Robin Phillips, it meant one thing: their dad, Robert. In 1958, Robert Phillips worked on a major restoration project commissioned by the British government. The goal was to make the monument safer, and help historians better understand what Stonehenge was and why it was there. The team drilled through the largest of the sarsen rocks, removing three stone cores. Robert Phillips was gifted one as a souvenir. At the time, the core sample was considered to be “waste material,” Lewis said. “I think that the standards of the day, in conservation, were a bit different to what they are now,” Robert added. Six decades later, Robert - who’s now in his 90s - asked his sons to return the “waste material.” But what had become a family heirloom for the Phillips’ was “the Holy Grail” of Stonehenge for geologists, according to Susan Greaney, an archaeologist at English Heritage. “When the Phillips family first got in touch with us, we had no idea that this existed,” Greaney said. “We’d just assumed that they’d been thrown away.” In 1958, samples like this couldn’t provide much information - but now, Greaney added, it can help archaeologists understand where the stones were from and how they were transported. It could even provide clues to one of the biggest questions: why move all these rocks to one location? Right now, “we don’t know” is the answer to that, Greaney said. "We think this is a prehistoric temple. It’s aligned with the movements of the sun, so we think it’s some kind of ceremonial space. But exactly what the stones mean, why they built them in this way and set them up in the way we see today, there are lots of mysteries about Stonehenge that we have yet to get to the bottom of. 
2. The word “they” in paragraph 1 refers to _____

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She had worked as a tourist guide before __________ a teaching career.

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An American game that has traveled well is basketball, now played by more than 250 million people worldwide in an organized fashion, as well as by countless others in “pick-up” games. Basketball originated in 1891 when a future Presbyterian minister named James Naismith (1861-1939) was assigned to teach a physical education class at a Young Men’s Christian Association (YMCA) training school in Springfield, Massachusetts. The class had been noted for being disorderly, and Naismith was told to invent a new game to keep the young men occupied. Since it was winter and very cold outside, a game that could be played indoors was desirable.  Naismith thought back to his boyhood in Canada, where he and his friends had played “duck on a rock,” which involved trying to knock a large rock off a boulder by throwing smaller rocks at it. He also recalled watching rugby players toss a ball into a box in a gymnasium. He had the idea of nailing up raised boxes into which players would attempt to throw a ball. When boxes couldn’t be found, he used peach baskets. According to Alexander Wolff, in his book 100 Years of Hoops, Naismith drew up the rules for the new game in “about an hour.” Most of them still apply in some forms today.  Basketball caught on because graduates of the YMCA school traveled widely, because Naismith disseminated the rules freely, and because there was a need for a simple game that could be played indoors during winter. Naismith’s legacy included the first great college basketball coach, Forrest “Phog” Allen (1885-1974), who played for Naismith at the University of Kansas and went on to win 771 games as a coach at Kansas himself. Among Allen’s star players was Wilt Chamberlain, who became one of professional basketball’s first superstars – one night in 1962, he scored a record 100 points in a game.  The first professional basketball league was formed in 1898; players earned $2.50 for home games, $1.25 for games on the road. Not quite 100 years later, Juwan Howard, a star player for the Washington Bullets (now called the Washington Wizards), had competing offers of more than $100 million over seven seasons from the Bullets and the Miami Heat.  Many teams in the National Basketball Association now have foreign players, who return home to represent their native countries during the Olympic Games. The so-called Dream Team, made up of the top American professional basketball players, has represented
the United States in recent Olympic Games. In 1996 the Dream Team trailed some opponents until fairly late in the games. In Athens in 2004 Argentina took home the gold, the first time a Latin American country won the basketball honor. 
5. According to paragraph 3, who was Wilt Chamberlain?

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Viet/ said/ he/ would/ be doing/ experiment/ 10 o’clock/ following day.

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Simmons Research conducted a survey of American adults in order to learn how much Americans at large trust the media, and we are pleased to present the results in this first Simmons News Media Trust Index. We asked respondents to let us know how trustworthy or untrustworthy they found 38 of the largest and most well-known news sources commonly available in the US. News sources included represented a wide variety of mediums, including print, online, radio, and television with many of them operating across platforms. The average percentage of respondents who rated news sources as trustworthy or very trustworthy was just 40.1% - not a ringing endorsement for journalism in general. Topping the list across all news sources, and the only newspaper in the top five, was the Wall Street Journal with 57.7% of Americans trusting them. The major television network news organizations also fared quite well in our survey, taking the second (ABC 55.9%), third (CBS 55.4%), and sixth (NBC 54.1%) most trusted positions. Among cable news, the most trusted network in the US was ironically not American. BBC News was trusted by 55.2% of Americans and was the fourth most trusted news source. CNN, which touts itself as the “most trusted name in news,” trailed the list at number 14 with the trust of 46.1% of Americans. Forbes was the most trusted magazine and rounded out the top five, trusted by 54.2% of Americans. The New York Times and the Washington Post were both among the most trusted news organizations in our survey. The New York Times came in at the seventh position trusted by 53.8% of Americans, and the Washington Post in eighth trusted by 53.6%. USA Today (51.1%) and the Washington Times (50.0%) were the final two sources trusted by at least a majority of Americans. The least trusted news sources were all Internet-first and hyper-partisan in nature representing brands that have been consistently rated as misleading and inaccurate by factcheckers. The six organizations trusted least were split evenly between far-left and far-right news sources, and on average were trusted by only about one in four Americans. Daily Caller was the bottom of our list, with just 22.5% trusting them. They were followed by another extremely conservative platform, InfoWars, at 24.3% which was recently banned or had content deleted from Facebook, YouTube, iTunes, and Spotify for violating terms of service around hate speech, harassment, and bullying
2. The word “they” in paragraph 1 refers to _____.

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Rachel Carson was born in 1907 in Springdale, Pennsylvania. She studied biology in college and zoology at Johns Hopkins University, where she received her master's degree in 1933. In 1936, she was hired by the US Fish and wildlife service, where she worked most of her life. Carson's first book, Under the Sea Wind, was published in 1941. It received excellent reviews, but sales were poor until it was reissued in 1952. In that year, she published The Sea Around Us, which provided a fascinating look beneath the ocean's surface, emphasizing human history as well as geology and marine biology. Her language had a poetic quality. Carson consulted no less than 1,000 printed sources. She had voluminous correspondence and frequent discussions with experts in the field. However, she always realized the limitations of her non-technical readers. In 1962, Carson published Silence Spring, a book that sparked considerable controversy. It proved how much harm was done by the uncontrolled, reckless use of insecticides. She detailed how they poison the food supply of animals, kill birds, and contaminate human food. At that time, spokes men for the chemical industry mounted personal attacks against Carson and issued propaganda to indicate that her findings were flawed. However, her work was vindicated by a 1963 report of the President's Science Advisory Committee.
7. The word "reckless" is closest in meaning to: 

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The aviation industry, especially the commercial aviation sector, is constantly striving to improve both the way it works and its customer satisfaction. It has begun using artificial intelligence. Though AI in the aviation industry is still in the nascent stage, some progress has been made already as certain leading carriers invest in AI. To make a long story short, AI can redefine how the aviation industry goes about its work. In 2017, American Airlines conducted an app development competition with the goal of having an app developed for making baggage screening easier for passengers. The competition, named HackWars, was themed upon artificial intelligence, drones and augmented and virtual reality. The winner, known as “Team Avatar,” developed an app that would not only allow passengers determine their baggage size before arriving at the airport, but also prepay any potential baggage-related expenses. United Airlines is using Amazon’s Alexa to have certain common customer queries answered. In September 2017, United announced a collaboration with Alexa. The feature is known as the United skill. To get started, all passengers need to do is to  add the United skill to their Alexa app and then start asking questions. Alexa answers common queries correctly, such as the status of a flight by number, check-in requests and availability of Wi-Fi on a flight. The reviews so far have been mixed, which points to the fact that there is a learning curve, and it is still a long way to go before AI can fully handle customer assistance. Tracking progress is an enormous challenge that airlines will face. The first thing they need to do is to develop analytics that will help them develop and process accurate data. However, that in itself is a challenge. What kind of analytics will help? For example, customer satisfaction is going to be one of the most important factors in success. What kind of analytics will determine that airlines have been improving on customer satisfaction parameters? AI needs huge investments, and probably the biggest risk in this is smaller, especially budget airlines are going to miss out on reaping the benefits of AI fully. Does that mean that the performance of the smaller carriers will be impacted? That might not be the case, because we might be moving toward more acquisitions and mergers. Bigger airlines will have a massive appetite for acquiring smaller airlines with an eye on the market. It is not all gloom and doom though, because smaller airlines like Southwest have already shown some initiatives toward embracing AI. It is surprising that a sector as important as aviation has woken up to AI so late. As AI in aviation picks up its pace, there could probably be a few mergers, acquisitions or even closure of small airlines which will not be able to afford the investments. Now, AI seems the best option to take aviation to the next level.
5. According to paragraph 3, Amazon’s Alexa is ______