400-year-old plants from the Little Ice Age were brought back to life, which could help us understand how the Earth will deal with climate change. Moss found buried beneath the Teardrop glacier on Ellesmere Island in Canada has been brought back to life. Findings suggest that these plants could help repopulate regions exposed by melting ice caps. Plants that were buried beneath thick ice in Canada more than 400 years ago and were thought to have frozen to death have been brought back to life by Canadian scientists. Samples of the moss plant, covered by the glacier during the Little Ice Age of 1550 to 1850 AD, were replanted in a lab at the University of Alberta and grew new stems . Researchers now think these findings can give indication as to how regions can recover as the ice covering them melts. Biologist Dr. Catherine La Farge and her team at the University of Alberta were exploring the region around the Teardrop glacier on Ellesmere Island. Ice on Ellesmere Island region has been melting at around four meters each year for the past nine years. This means that many areas of land that were previously covered by ice have since been exposed. Many ecosystems that were thought to have been destroyed during the Little Ice Age between 1550 and 1850 AD can now be studied, including many species that have never been studied before. While examining an exposed area of land, La Farge and her team discovered a small area of moss called Aulacomnium turgidum. It is a type of bryophyte plant that mainly grows across Canada, the US and the Highlands of Scotland. Dr La Farge noticed that the moss had small patches of green stems, suggesting it is either growing again or can be encouraged to repopulate. Dr La Farge told the BBC, "When we looked at the samples in detail and brought them to the lab, I could see some of the stems actually had new growth of green branches, suggesting that these plants are growing again, and that _ When we think of thick areas of ice covering the landscape, we've always thought that plants... Which of the following would be the best title for the passage? A) Bryophyte ecology is greatly affected by climate change. B) 400-year-old moss's survival is a mystery to solve. C) Moss in ancient times was discovered in Canada. D) 400-year-old plants were brought back to life.
D
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Keen to share your views and have your articles published in the Campus Link? We are calling for contributions to the following sections: Lifestyle: Do you travel widely, keep a journal of your adventures and have nice photographs that you might want to share? Or have you simply been somewhere that caught your imagination? Tell us all about your travels! Are you an eager movie-goer? Be Leonard Maltin for the day and share your views of the latest blockbuster with our readers! If food is your preferred choice of relaxation, try your hand at being food critic and send us your views on food/restaurants worth trying. Research: If this noble line of work is your bread and butter or passion, we want to hear from you! Share with Campus Link your research developments and breakthroughs. If you know of someone (your schoolmate or teacher) whose research work is a source of inspiration for our community, do not hesitate to send in your suggestions! If you are interested in sharing any of the above, or if you know of someone worthy of feature, please get in touch with the Editor-in-Chief, at karinyeo@campuslink.sg. Contributions will be selected based on their relevance and quality and Campus Link reserves the right to publish or reject a submission . All contributions will be edited for clarity and length. Please send your submissions in word.doc files and your photos in jpeg format. In the Lifestyle section, you may not find _ . A) journals of travels B) well-taken photographs C) stories of Leonard Maltin D) opinions on restaurants
(Answer)
C
Ques: Two girls living next door to each other-a seemingly plain scene that has two very different life .stories behind it. Chi Zhen, an 18-year-old student in Seville, Spain, used his camera to tell the story of two lives, which went widespread online. Comments on the photos indicate that they have inspired many, to believe that the future is in their own hands. Chi has seen many youths living life without a goal, wasting their time and blaming bad luck for it. Feeling regret for them, he took a series of photos of his friends Veronica and Anna Maria, both freshmen at the University of Seville in Spain. They live completely different life styles and are getting opposite results. Chi hopes the photos will inspire those who have let go of their own fate . In the photos, Anna Maria, a Spanish girl, can be seen watching a TV programme . She spends most of her time in front of her laptop. She rarely goes out, because she thinks she's not attractive and doesn't know what to say in social situations. "'I'm not as lucky as Veronica," she often says. But she doesn't know that while she's wasting time watching TV, -Veronica, the "lucky" girl next door,has taught herself four foreign languages and traveled to many places. She goes to the library frequently and her extensive knowledge and experience allow her to take part in any conversation and become the center of attention. Chi thinks that Anna Maria resembles many of his Chinese .friends who study abroad. They are trapped to their little circles, never trying to change their fate./'They say 'maybe I'll do it in my next life', but they are in their 20s, their best time. How can they give up hope and accept this as their life?" Chi says. The influence of the photos has gone far beyond what Chi expected. One user commented on his photos on Renren.com, saying, "A wall separates two worlds, and the life we have depends on what we do." Another is determined to make a change right away. "I'm turning off my laptop and not watching TV anymore," he wrote. According to the text, Veronica _ A) likes watching TV programmes B) seldom chats with others C) is often the centre of attention D) lets go of her own fate
Ans: C
Question: If you want to cook something quickly, you heat it from both sides. That's what's happening to the West Antarctic ice sheet . A new study reveals that the area under the ice sheet is far hotter than previously thought, fed by an unexpected flow of geothermal energy . While the CO2we send out heats the atmosphere above the continent, earth is melting us ice from below. If you were to drill deep at some place on the continents, you would find that the temperature increases about 25degC for every kilometer deep into the hole on average. Scientists call this the geothermal gradient . Until recently, no one had drilled deeply enough through the West Antarctic ice to determine the geothermal gradient underground. For the new study, researchers drilled all the way through the ice and into the mud. They found that the geothermal gradient was about 200degC, which is several times the global average on continents. Few predicted this result, although it had been showed that the earth below the West Antarctic ice is unusually hot. Even with the new discovery, though, we still don't know exactly where the heat is coming from. One interesting possibility is volcanoes, which are under the ice. As recently as 2013, scientists were still discovering volcanoes under the ice in the area, and there may be many more. Some people say that these volcanoes, rather than manmade climate change, are responsible for melting the area's ice. While it's true that heat coming from within the earth, including heat related to volcanoes, makes the melting faster, it is just one contributor to the loss of the West Antarctic ice sheet---not the main cause. Today's study could help us understand how the whole system, including global warming, is melting the ice. What's the main idea of the passage? A) The West Antarctic ice sheet is in danger. B) Researchers are trying to stop global warming. C) The West Antarctic ice sheet's melting will bring terrible consequences. D) It has been known how to stop the melting of the West Antarctic ice sheet.
Answer:
A