Find mistake:
I'd love come and see them on Sunday, provided that I don't have to work that day.

 

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Allowing adolescents to make more of their own choices was found to be the most common strategy used to encourage independence. Many parents also reported that they are pushing their teenager by no longer doing certain things for them. Regardless of their effort, one quarter of parents surveyed still believe they are the main barrier to their teen’s independence because they are failing to hand over more responsibility. “As children become teenagers, the role of parents shifts to helping them gain the knowledge and experience they will need for being independent adults,” explained poll codirector Sarah Clark. “This process of transitioning from childhood to adulthood includes everything from preparing for work and financial responsibility, to taking care of one’s health and well-being. Our poll suggests that parents aren’t letting go of the reins as often as they could be to help teens successfully make that transition.” The new survey from the University of Michigan involved nearly 900 parents with at least one teenager between the ages of 14 and 18. Overall, 60 percent of the respondents attributed their child’s lack of independence to characteristics such as not being mature or knowledgeable enough to take on more responsibility. By contrast, 25 percent of parents admitted that it is faster and less of a hassle to do things themselves. “It is clear that parents recognize tension in helping teens move toward independence, and they agree that valuable learning experiences often result from a poor decision,” said Clark. “Some parents justify taking control over certain responsibilities because they don’t believe their teen is ‘mature enough.’ Parents need to carve out more time for supporting teens in their transition to adulthood.”  
6. The word “hassle” in paragraph 3 is closest in meaning to ______

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Social networking sites such as Facebook and MySpace do not help you make more  genuine close friends, according to a survey by researchers who studied how the websites are changing the nature of friendship networks. Although social networking on the internet helps people to collect hundreds or even thousands of acquaintances, the researchers believe that face to face contact is nearly always necessary to form truly close friendships.  “Although the numbers of friends people have on these sites can be massive, the actual number of close friends is approximately the same in the face to face real world,” said psychologist Will Reader, from Sheffield Hallam University. Social networking websites such as Facebook, Bebo and MySpace have taken off rapidly in recent years. Facebook was launched initially in 2004 for Harvard University members but has since expanded to more than 34 million users worldwide. MySpace, which was set up in 2003, has more than 200 million users and was bought by Rupert Murdoch’s News Corporation in 2005 for $580m (£285m). Previous research has suggested that a person’s conventional friendship group consists of around 150 people, with five very close friends but larger numbers of people whom we keep in touch with less regularly. This figure is so consistent that scientists have suggested it is determined by the cognitive constraints of keeping up with large numbers of people. But Dr. Reader and his team have found that social networking sites do allow people to stretch this figure. The team asked more than 200 people to fill in questionnaires about their online networking, asking for example how many online friends they had, how many of these were close friends and how many they had met face to face. The team found that although the sites allowed contact with hundreds of acquaintances, as with conventional friendship networks, people tend to have around five close friends. Ninety per cent of contacts whom the subjects regarded as close friends were people they had met face to face. “People see face to face contact as being absolutely imperative in forming close friendships,” added Dr. Reader. He told the British Association Festival of Science in York that social networking sites allow people to broaden their list of nodding acquaintances because staying in touch online is easy. “What social network sites can do is decrease the cost of maintaining and forming these social networks because we can post information to multiple people,” he said.  But to develop a real friendship we need to see that the other person is trustworthy, said Dr. Reader. "What we need is to be absolutely sure that a person is really going to invest in us, is really going to be there for us when we need them … It’s very easy to be deceptive on the internet."
5. According to the passage, Dr. Reader and his team have found that _______________

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In Viet Nam festivals often take place during the three months in spring and in autumn when people have a lot of leisure time. In addition, the climate in spring and autumn is especially suitable for holding festivals and for festivals goers to enjoy. Traditional festivals constitute a form of cultural activities, a spiritual product which the people have created and developed during the course of history. From generation to generation, the Vietnamese people preserve the fine tradition of “remembering the source while drinking water.” Festivals are events which represent this tradition of the community as well as honor the holy figures named as “gods” – the real persons in national history or legendary persons. The images of gods converge the noble characteristics of mankind. They are national heroes who fought against foreign invaders, reclaimed new lands, treated people, fought against natural calamities, or those legendary characters who affect the earthly life. Accordingly, first and foremost, festivals are events when people pay tribute to divinities that rendered merits to the community and the nation. These are occasions when people come back to either their natural or national roots, which form a sacred part in their mind. Furthermore, festivals represent the strength of the commune or village, the local region or even the whole nation. Worshipping the same god, the people unite in solidarity to overcome difficulties, striving for a happy and wealthy life. Moreover, festivals display the demand for creativity and enjoyment of spiritual and material cultural values of all social strata. Festivals become a form of education under which fine traditional moral values can be handed from one generation to the next in a unique way of combining spiritual characters with competition and entertainment games. Festivals are also the time people can express their sadness and worries in a wish that gods might bestow favor on them to help them strive for a better life.  
2. Which of the followings best replace the word "course” in the second paragraph? 

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I wish my parents could put themselves in my ______

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The idea of going overseas to study can be daunting, with visions of baffling languages or nights spent in isolation while you are gradually forgotten by your friends and family. (1) _________, the benefits of studying abroad - such as broadening your mind, improving your career prospects and making friends from all over the world - can make digging out your passport really rewarding. “Studying abroad is an eye-opening experience,” says Anna Boyd, event manager at The Student World. “Being (2) _________ in another culture, understanding differences and spotting similarities, living on a beach or in the mountains, (3) _________ will have an impact on every student.” Overseas study comes in many shapes and sizes. It might be a single semester abroad via an Erasmus programme, for example. Or you might elect to follow a full three- or fouryear degree programme. Whatever your ambition, the key is starting early. Some countries require specific combinations of A-levels from UK students. Germany looks for four A-levels including maths or science and one modern foreign language, for instance, while others, such as the US, value extracurricular activities. Starting our research well ahead (4) _________ time can help you make the right choices. “Getting involved in sports, arts and music is also worth considering, as well as gaining experience through volunteering and work placements,” says Boyd. In fact, applying to study abroad could even work to your advantage , for example, you might encounter lower (5) _______ requirements

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:
There are three valid arguments to support the preservation of endangered species. An aesthetic justification contends that biodiversity contributes to the quality of life because many of the endangered plants and animals are particularly appreciated for their unique physical beauty. The aesthetic role of nature in all its diverse forms is reflected in the art and literature of every culture, attaining symbolic status in the spiritual life of many groups. According to the proponents of the aesthetic argument, people need nature in all its diverse and beautiful forms as part of the experience of the world.
Another argument that has been put forward, especially by groups in the medical and pharmacological fields, is that of ecological self-interest. By preserving all species, we retain a balance of nature that is ultimately beneficial to humankind. Recent research on global ecosystems has been cited as evidence that every species contributes important or even essential functions that may be necessary to the survival of our own species. Some advocates of the ecological argument contend that important chemical compounds derived from rare plants may contain the key to a cure for one of the diseases currently threatening human beings. If we do not protect other species, then they cannot protect us.
Apart from human advantage in both the aesthetic and ecological arguments, the proponents of a moral justification contend that all species have the right to exist, a viewpoint stated in the United Nations World Charter for nature, created in 1982. Furthermore, if humankind views itself as the stewards of all the creatures on Earth, then it is incumbent upon human beings to protect them, and to ensure the continued existence of all species. Moral justification has been extended by a movement called “deep ecology,” the members of which rank the biosphere higher than people because the continuation of life depends on this larger perspective. To carry their argument to its logical conclusion, all choices must be made for the biosphere, not for people.

Which of the arguments supports animal rights?

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For centuries, historians and archaeologists have puzzled over the many mysteries of  Stonehenge, the prehistoric monument that took Neolithic builders an estimated 1,500 years to erect. Its construction is so baffling because, scientists have traced the bluestones that make up its inner ring all the way to the Preseli Hills in Wales, some 200 miles from where Stonehenge sits on Salisbury Plain.  If the facts surrounding the architects and construction of Stonehenge remain shadowy at best, the purpose of the arresting monument is even more of a mystery. While historians agree that it was a place of great importance for over 1,000 years, we may never know what drew early Britons to Salisbury Plain and inspired them to continue developing it. There is strong archaeological evidence that Stonehenge was used as a burial site, at least for part of its long history, but most scholars believe it served other functions as well-either as a ceremonial site, a religious pilgrimage destination, a final resting place for royalty or a memorial erected to honor and perhaps spiritually connect with distant ancestors.  In the 1960s, the astronomer Gerald Hawkins suggested that the cluster of megalithic stones operated as an astronomical calendar, with different points corresponding to astrological phenomena such as solstices, equinoxes and eclipses. While his theory has received quite a bit of attention over the years, critics maintain that Stonehenge’s builders probably lacked the knowledge necessary to predict such events or that England’s dense cloud cover would have obscured their view of the skies. More recently, signs of illness and injury in the human remains unearthed at Stonehenge led a group of British archaeologists to speculate that it was considered a place of healing, perhaps because bluestones were thought to have curative powers.
1. What is main topic of the passage?

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The relationship between Britain and the US has always been a close one. Like all close relationship it has had difficult times. The US was first a British colony, but between 1775 and 1783 the US fought a war to become independent. The US fought the British again in the War of 1812. In general, however, the two countries have felt closer to each other than to any other country, and their foreign policies have shown this. During World War I and World War II, Britain and the US supported each other. When the US looks for foreign support, Britain is usually the first country to come forward and it is sometimes called “the 51st state of union”. But the special relationship that developed after 1945 is not explained only by shared political interests. An important reason for the friendship is that the people of the two countries are very similar. They share the same language and enjoy each other’s literature, films and television. Many Americans have British ancestors, or relatives still living in Britain. The US government and political system is based on Britain’s, and there are many Anglo-American businesses operating on both sides of the Atlantic. In Britain some people are worried about the extent of US influence, and there is some jealousy of its current power. The special relationship was strong in the early 1980s when Margaret Thatcher was Prime Minister in Britain and Ronald Reagan was President of the US.  
3. The word “they” in paragraph 3 refers to ______

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The artisan is delighted to ………. to you the craft of creating prints in an old-age style.

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After inventing dynamite, Swedish-born Alfred Nobel became a very rich man. However, he foresaw its universally destructive powers too late. Nobel preferred not to be remembered as the inventor of dynamite, so in 1895, just two weeks before his death·, he created a fund to be used for awarding prizes to people who had made worthwhile contributions to humanity. Originally there were five awards: literature, physics, chemistry, medicine, and peace. Economics was added in 1968, just sixty-seven years after the first awards ceremony.
Nobel's original legacy of nine million dollars was invested, and the interest on this sum is used for the awards which vary from $30,000 to $125,000. Every year on December 10, the anniversary of Nobel's death, the awards (gold medal, illuminated diploma, and money) are presented to the winners. Sometimes politics plays an important role in the judges' decisions. Americans have won numerous science awards, but relatively few literature prizes.
No awards were presented from 1940 to 1942 at the beginning of World War 11. Some people have won two prizes, but this is rare; others have shared their prizes.

The word “foresaw” in the first paragraph is nearest in meaning to -     .

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The Sahara Desert is the world’s largest hot desert. The Sahara is in North Africa and is as large as the United States. Many people think that an area like this has no animals or plant life, but they are (1) __________. In fact, the Sahara Desert has many different ‘ecoregions’. Each ecoregion has different plants and animals (2)_________there. The biggest ecoregion is called the ‘Sahara Desert ecoregion.’ In this area, the climate is extremely dry and extremely hot. The landscape is sandy and dusty with many high dunes. Because the Sahara Desert ecoregion is so hot and dry, there are very few plants and animals. Scientists estimate that there are only 500 species of plants. This is not very much when thinking of (3)_________ enormous the region is. These plants include acacia trees, palms, spiny shrubs, and grasses. The Sahara is also home to 70 species of mammals. Twenty of these are large mammals. There are about 90 species of birds and around 100 reptiles. The biggest threat to plants and animals in this environment is drying up. Because of this, plants have the ability to recover their health after their leaves have dried out completely. Animals can lose 30-60% of their body mass and still survive. Most animals do not get their water from drinking like other ecosystems. Instead, they have adapted to get their water through metabolic processes. This is why they can survive in a place (5)______ the Sahara Desert ecosystem

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As teenagers approach university level, a decision has to be made on what course to pursue. In this world of diversity, (1) ______ such a choice is not easy for both children and parents. In the old days, it was not much a problem to do the task because there were not so many diverse learning areas to choose from. Besides, there were only a few distinctive professional careers like doctor, engineer, accountant, nurse, teacher,etc.  to think about. Most higher learning usually led to a financially successful life. (2) ______, the cost of education was not so high. Today’s world is entirely different from the things (3) ______ have just been described.  The job market is constantly changing due to innovative technology and new (4) ______. Meanwhile, most teenagers have difficulty in identifying their own interests. There are a variety of well- organized career talks and student counseling workshop to guide and help teenagers (5) ______ what course to take. Furthermore, psychological tests are also used.  Certain instruments such as surveys, interviews and computer software can help to find out preferences, interests, or learning styles of the students.

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It is natural for young people to be critical of their parents at times and to blame them for most of the misunderstandings between them. They have always complained, more or less justly, that their parents are out of touch with modern ways; that they are possessive and dominant; that they do not trust their children to deal with crises; that they talk too much about certain problems, and that they have no sense of humor, at least in parent-child relationships. I think it is true that parents often underestimate their teenage children and also forget how they themselves felt when they were young. Young people often irritate their parents with their choices in clothes and hairstyles, in entertainers and music. This is not their motive. They feel cut off from the adult world into which they have not yet been accepted. So they create a culture and society of their own. Then, if it turns out that their music or entertainers of vocabulary or clothes or hairstyles irritate their parents, this gives them additional enjoyment. They feel they are superior, at least in a small way, and that they are leaders in style and taste. Sometimes you are resistant and proud because you do not want your parents to approve of what you do. If they approve, it looks as if you are betraying your own age group. But in that case, you are assuming that you are the underdog; you cannot win; but at least you keep your honor. This is a passive way of looking at things. It is natural enough after long years of childhood, when you were completely under your parents’ control. But it ignores the fact that you are now beginning to be responsible for yourself. If you plan to control your life, cooperation can be part of that plan. You can charm others, especially your parents, into doing things the way you want. You can impress others with your sense of responsibility and initiative, so that they will give you the authority to do what you want to do.  
2. The first paragraph is mainly about ___________

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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  
1. Which best serves as the title for the passage? 

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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.
2. The word “carriers” in paragraph 1 probably means ______

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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. 
4. The word “them” in paragraph 2 refers to ______

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Four West Indian geckos, with human assistance, have recently entered the United States. The yellowheaded gecko, the ashy gecko, the reef gecko, and the ocellated gecko are presently inhabiting the tropical areas of the Keys and the tip of southern Florida. The Mediterranean gecko also arrived along the Gulf coast some time ago, via the West Indies. The only other geckos in the United States live in the Southwest. In extreme southern California, the leaf-gingered gecko lives

in dry, rocky country and scampers over boulders at night, hiding by day in crevices. It has a slender, tapered tail and stalks insects by raising itself high on its legs, cocking its head, and twitching its tail nervously before leaping on its prey. In courtship, the tail is also waved by the male as he approaches the female.
Although most lizards are excellent climbers, the geckos are able to walk on smooth surfaces with the help of unique clinging devices under the toes. Also, the undersides of most geckos have pads of large scales, each of which bear microscopic hairs with hundreds of branches having minute, blunt ends that press against the surface that the gecko is on, enabling the gecko to cling to almost any surface. Like other lizards, geckos have the ability to shed their tails if attacked by an enemy. They stump heels and a new tail is grown in approximately the same shape as the original. Unlike most lizards, most geckos have no moveable eyelids. The nocturnal geckos have vertical pupils, which contract in bright light. All geckos, except several New Zealand species, lay eggs. The eggs have a tough, white shell and are laid under stones, behind window shutters or under bark.

In line 1, the author uses the words “human assistance” to mean .

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:
The difference between the nuclear family and the extended family is that a nuclear family refers to a single basic family unit of parents and their children, whereas the extended family refers to their relatives such as grandparents, in-laws, aunts and uncles, etc. In many cultures, and particularly indigenous societies, the latter is the most common basic form of social organization. A nuclear family is limited, according to Kristy Jackson of Colorado State University, to one or two parents (e.g. a father and mother) and their own child, or children, living together in a single house or other dwellings. In anthropology, they only must be related in this fashion; there is no upper or lower limit on the number of children in a nuclear family.
The extended family is a much more nebulous term, but in essence refers to kin or relations not covered by the above definition. In historical Europe and Asia as well as in Middle Eastern, African, and South American Aboriginal cultures, extended family groups were typically the most basic unit of social organization. The term can differ in specific cultural settings, but generally includes people related in age or by lineage. Anthropologically, the term “extended family” refers to such a group living together in a household, often with three generations living together (grandparents, parents, and children) and headed in patriarchal societies by the eldest man or by some other chosen leadership figure. However, in common parlance, the term “extended family” is often used by people simply to refer to their cousins, aunts, uncles, and so on, even though they are not living together in a single group.
Historically, most people in the world have lived in extended family groupings rather than in nuclear families. This was even true in Europe and in the early United States, where multiple generations often lived together for economic reasons. During the 20th century, average income rose high enough that living apart as nuclear families became a viable option for the vast majority of the American population. In contrast, many indigenous societies and residents of developing countries continue to have multiple generations living in the same household. The rise of the nuclear family in the modern West does not necessarily mean that family arrangements have stabilized, either. The rapid growth in single-parent households, for instance, also represents a substantial change in the traditional nuclear family. More couples are also choosing not to have children at all.

According to the passage, single-parent households     .

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Desertification is creating additional challenges to the survival of endangered animal species in India, according to a senior wildlife official who attended the 14th Conference of Parties (COP14) to the United Nations Convention to Combat Desertification (UNCCD) in New Delhi. A few days earlier, at COP14 in New Delhi, Dr Chandra had said that the statistics on species extinction have been derived from a database of more than 5.6 million specimens, which have lived across India and the neighbouring countries since before independence. The deteriorating pattern in the species’ distribution in geo-special platforms over the past 100 years clearly highlights the concerning impact of deforestation and desertification. Land degradation threatens species like the Great Indian Bustard, which is classified as “critically endangered” by the International Union for Conservation of Nature (IUCN). The Weather Channel India got in touch with Dr Chandra, who said that less than 150 Great Indian Bustards are alive today. “Desertification and land degradation are among the 20-30 risk factors to the survival of Great Indian Bustards,” Dr Chandra told Weather.com. In simple terms, desertification is a process wherein fertile land becomes unusable, typically as a result of a long drought, deforestation, salinisation, intensive agricultural practices, and the excessive usage of insecticides, pesticides and chemicals. Desertification leads to hazardous effects on not just animals, but also on the food chain and the overall biodiversity—right from microscopic organisms to human beings. Deforestation has affected over 30% of the land in India due to over-cultivation, soil erosion and depletion of wetlands. Along with India, the planet as a whole currently stares at the fast-growing threat of land degradation  
3. According to paragraph 3, why is the Great Indian Bustard labelled as “critically endangered”?

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Zoos used to be primarily a place for people to see wild animals they had never seen.  Now, however, zoos serve a new purpose – to be captive-breeding programs for endangered animals. There are less than a hundred Sumatran rhinos worldwide, and three were born in Cincinnati Zoo. When old enough, one of the males was sent to Way Kamabas National Park in Sumatra and this helped to start the process of re-populating his species in the wild and saving it from the extinction.  Other zoos have started captive-breeding programs as well. Zoos have saved the Arabian onyx, the black-footed ferret, the red wolf, the Guam rail, and the California condor. But the cost of the programs for saving the threatened animals is not cheap. The condor program alone costs up to $2 million a year. While it is mostly large-city zoos involved in captive breeding, smaller zoos do their part. The Miller Park Zoo in Bloomington, Illinois, is working on breeding the endangered, and small. Mount Graham red squirrel.  Zoos have always been involved in animal conservation to some degree, but the question of which animals to save is a big one. Endangered animals may not be the most exciting to see in a zoo, and to di conservation work the zoos must survive financially. Space is a problem as well. A zoo might be able to save a small number of large animals or a large number of small ones. Currently, the most threatened group of animals is amphibians. Zoos realize that visitors may not want to see frogs, salamanders, or other small animals and may only pay to see rhinos, lions, and tigers. Some scientists believe zoos should be less tourist attractions and more conservation sanctuaries. Thus, although zoos continue to do good work, they still confront tricky questions. There are a limited number of animals that can be cared for in zoos, and that means many species on the edge of extinction may not survive. The Sumatran orangutan and a thousand other threatened species have not made it into a captive-breeding program, but the species will continue to exist. How? In the Frozen Zoo. Cells from these animals are stored in the San Diego Zoo Institute for Conservation Research in liquid nitrogen. Only one animal in the Frozen Zoo is presently extinct, but many others are at dire risk. In the Frozen Zoo, however, the cells of animals will be preserved for study through their genetic material.
8. What is the purpose of the Frozen Zoo?