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Strikingly, Rochman says, only one well-designed study failed to find the effect it was looking for, an investigation of mussels ingesting microscopic bits. While mussels may be fine eating trash, though, the analysis also gave a clearer picture of...
Found: 24 May 2021 | Rating: 99/100
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But if ecologists can understand how the slow-moving effect of ocean trash is damaging ecosystems, they might be able to prevent things from getting worse. Asking the right questions can help policymakers, and the public, figure out where to focus...
Found: 24 May 2021 | Rating: 91/100
IELTS Recent Actual Test With Answers Volume 3
Thus, by showing the practical value of insect research, people would appreciate nature more, and wildlife in general will benefit. In other words, it fell out of favour. Hence, paragraph E gives an example of an insect-derived medicine in use at the moment. Questions Answer: B. In paragraph G, the author mentions that many insects can release compounds to subdue their prey or to deal with pathogenic bacteria and fungi. This means that humans can make use of these compounds to produce antibiotics. Thus, B is one correct answer. Another benefit from insect research is that we can extract useful compounds by snipping out insect DNAs and inserting them into particular cells to allow larger production. Therefore, C is correct. Questions Complete the summary below. There, Piper and his colleagues use their knowledge in ecology to target certain insects for bioprospecting. This means he hopes that these compounds and substances will be used to develop antibiotics a type of drug.
Found: 11 Apr 2021 | Rating: 92/100
Cambridge Listening Book 4 Test 3 Best Practice
A For any animal to travel over km in Botswana partly across the sand and low bush terrain of the Kalahari Desert is a remarkable achievement. But to do so in 11 days and without any obvious motivation, as this zebra population does, is quite extraordinary. On average their journey involves an exhausting round-trip of km — between the Makgadikgadi salt pan area and the Okavango river — making it second only to the great trek undertaken by the zebra herds in the Serengeti National Park. However, what is even more incredible still in my view is that until recently it was completely unheard of.
Found: 22 Apr 2021 | Rating: 89/100
B Hattie Bartlam, a researcher, discovered this migration while she was tracking zebra groups, officially known as harems, by the Okavango River for her PhD, Each harem consists of a stallion and his seven or eight mares with juvenile foals. There is no loyalty between zebras beyond this social group, though harems often gather together into so-called herds. For her study, Hattie had planned to compare the small-scale movement patterns of 11 different zebra herds in the area. C In December, when the annual rains had transformed the roads into rivers, Hattie was, therefore, more than a little surprised when she checked the data sent by the radio collars she fits to the zebras she is tracking to find that six of the harems were km away on the edge of the Makgadikgadi, a huge mineral-rich area where salt has collected over the years as water evaporates in the heat.
Found: 6 Apr 2021 | Rating: 91/100
Practice Cambridge IELTS 4 Listening Test 3 With Answers
Then, when the last of the moisture from the rains had disappeared in May the following year, five of those harems came wearily back to the Okavango. This raised the question: why, despite a plentiful supply of food and water, were the zebras being drawn eastwards to the salt pans? Even more difficult to understand was what made six of the groups travel so far, while the other five remained by the Okavango. D This discovery created quite a buzz in the research community. One of the migration tracks went from the Okavango to Makgadikgadi. But in the late s, giant fences were put up to stop foot and mouth and other diseases spreading between wildlife and domestic cattle.
Found: 14 Apr 2021 | Rating: 89/100
IELTSFever Academic Reading Practice Test 3 Answers
One of these went across the migration track. Though the animals could get round the obstacle, each leg of their journey would now be km longer — an impossible distance given the lack of permanent water on the extended route. Even today, with the fence gone it was taken down in , there is dangerously little drinking water to support the zebras on the return journey to the Okavango. E As a zebra can live up to 20 years, the migration must have skipped at least one generation during the 40 or so years that the fences were up.
Found: 11 Apr 2021 | Rating: 86/100
4 IELTS Reading Tips To Raise Your Score From A 6 To An 8
This prompts another question: it has always been assumed that the young of social herbivores like zebras learn migratory behaviour from their parents, so how did the latest generation learn when and where to go? Not from their parents, who were prevented from migrating. Did they follow another species, such as elephants? We may never know. The first, like the vast majority of the Okavango zebras, take it easy, spending the entire year by the river.
Found: 19 Apr 2021 | Rating: 93/100
Cambridge 14 Test 4 Reading Passage 3 IELTS
Social behaviour in zebras Zebras tend to live together in small units, which experts call 35 ……………….. Here, a male zebra has charge of a number of adult 36 ……………….. These units sometimes assemble in bigger groupings or 37 ……………….. Write the correct letter in boxes on your answer sheet. How did Hattie feel when she heard some of the zebras had travelled so far? When describing the different Botswana zebra populations, the writer indicates A. What does the writer suggest in the final paragraph? Too much time has been wasted on research into the predators like lions. Research will result in a ban on fences in areas where zebras live. Research into animals which are not endangered will increase. Show Answer.
Found: 14 Apr 2021 | Rating: 92/100
IELTS Simulation Test With Answers Volume 1
Here are my four tips for getting an 8 or higher in reading: 1 Read the questions first. A lot of people start reading the passage right away; however, this is actually the wrong thing to do. You should always go to the questions first. Read the first question, underline key words that will help you find the answer in the text, and only then start reading the passage. Then, repeat the same process for the second question. Never, ever skim the text! This is a big reading myth!
Found: 22 Apr 2021 | Rating: 92/100
IELTS Cambridge 9 Test 3 Reading Answers
Therefore, skimming the text actually makes you run out of time. You should read at your normal pace not too fast and not too slowly. The answers appear in order. The answer to Question 2 is after the first answer — maybe later in that same paragraph or in the beginning of the next paragraph. This fact makes it much easier to find the answers, which saves you a lot of time.
Found: 9 Apr 2021 | Rating: 85/100
Practice Cambridge IELTS 4 Listening Test 2 With Answers
However, these reading tests can be much easier than the real IELTS test, leaving you unprepared on test day. These questions will most closely resemble the actual test and will best prepare you for your upcoming IELTS exam. Free practice questions from Cambridge Assessment English.
Found: 1 Apr 2021 | Rating: 89/100
Forests are one of the main elements of our natural heritage. European countries are becoming increasingly concerned by major threats to European forests, threats which know no frontiers other than those of geography or climate: air pollution, soil deterioration, theincreasing number of forest fires and sometimes even the mismanagement of our woodland and forest heritage. There has been a growing awareness of the need for countries to get together to co-ordinate their policies. The conference brought together 31 countries from both Western and Eastern Europe. The topics discussed included the co-ordinated study of the destruction of forests, as well as how to combat forest fires and the extension of European research programs on the forest ecosystem. The preparatory work for the conference had been undertaken at two meetings of experts. Their initial task was to decide which of the many forest problems of concern to Europe involved the largest number of countries and might be the subject of joint action.
Found: 17 Apr 2021 | Rating: 90/100
IELTS General Reading Practice Test 13 With Answers
Those confined to particular geographical areas, such as countries bordering the Mediterranean or the Nordic countries therefore had to be discarded. However, this does not mean that in future they will be ignored. As a whole, European countries see forests as performing a triple function: biological, economic and recreational. At the same time, forests provide raw materials for human activities through their constantly renewed production of wood. Finally, they offer those condemned to spend five days a week in an urban environment an unrivalled area of freedom to unwind and take part in a range of leisure activities, such as hunting, riding and hiking. The economic importance of forests has been understood since the dawn of man — wood was the first fuel. The other aspects have been recognised only for a few centuries but they are becoming more and more important.
Found: 9 Apr 2021 | Rating: 85/100
Cambridge Ielts 4 Reading Test 3 Answers - Doc
Hence, there is a real concern throughout Europe about the damage to the forest environment which threatens these three basic roles. All European forests are artificial, having been adapted and exploited by man for thousands of years. This means that a forest policy is vital, that it must transcend national frontiers and generations of people, and that it must allow for the inevitable changes that take place in the forests, in needs, and hence in policy. The Strasbourg conference was one of the first events on such a scale to reach this conclusion.
Found: 12 Apr 2021 | Rating: 86/100
Cambridge 14 Test 4 Reading Passage 3 IELTS - IELTS Reading Answers
That general declaration was accompanied by six detailed resolutions to assist national policymaking. The first proposes the extension and systematisation of surveillance sites to monitorforest decline. The condition appears to result from the cumulativeeffect of a number of factors, with atmospheric pollutants the principal culprits. Compounds of nitrogen and sulphur dioxide should be particularly closely watched. However, their effects are probably accentuated by climatic factors, such as drought and hard winters, or soil imbalances such as soil acidification, which damages the roots.
Found: 26 Apr 2021 | Rating: 91/100
The second resolution concentrates on the need to preserve the genetic diversity of European forests. Although forest fires do not affect all of Europe to the same extent, the amount of damage caused the experts to propose as the third resolution that the Strasbourg conference consider the establishment of a European databank on the subject. All information used in the development of national preventative policies would become generally available. The subject of the fourth resolution discussed by the ministers was mountain forests. In Europe, it is undoubtedly the mountain ecosystem which has changed most rapidly and is most at risk. A thinly scattered permanent population and development of leisure activities, particularly skiing, have resulted in significantlong-term changes to the local ecosystems. Proposed developments include a preferential research program on mountain forests.
Found: 13 Apr 2021 | Rating: 87/100
Choose the correct letter, A, B, C or D. Write the correct letter in box 26 on your answer sheet. B thousands of people who live in either the New or the Old World. C dental specimens from the majority of prehistoric Americans. D the eating habits of American and Asian populations. Questions Do the following statements agree with the information given in Reading Passage 3? Questions Look at the following statements issued by the conference. Which six of the following statements, A-J, refer to the resolutions that were issued? Match the statements with the appropriate resolutions Questions Write the correct letter, A-J, in boxes on your answer sheet. A All kinds of species of trees should be preserved. B Fragile mountain forests should be given priority in research programs.
Found: 19 Apr 2021 | Rating: 85/100
( Update ) CAMBRIDGE IELTS 9 READING TEST 3 ANSWERS - Free Lesson | 1medicoguia.com
C The surviving natural forests of Europe do not need priority treatment. D Research is to be better co-ordinated throughout Europe. E Information on forest fires should be collected and shared. F Loss of leaves from trees should be more extensively and carefully monitored. G Resources should be allocated to research into tree diseases. H Skiing should be encouraged in thinly populated areas. I Soil imbalances such as acidification should be treated with compounds of nitrogen and sulphur. J Information is to be systematically gathered on any decline in the condition of forests.
Found: 6 Apr 2021 | Rating: 92/100
1medicoguia.com | Page 43 Of 66 | Cambridge IELTS Answers
AbuBakr Bahaj, in charge of the Southampton research, said: The prospects for energy from tidal currents are far better than from wind because the flows of water are predictable and constant. The technology for dealing with the hostile saline environment under the sea has been developed in the North Sea oil industry and much is already known about turbine blade design, because of wind power and ship propellers. There are a few technical difficulties, but I believe in the next five to ten years we will be installing commercial marine turbine farms. The best sites are between islands or around heavily indented coasts where there are strong tidal currents. D A marine turbine blade needs to be only one-third of the size of a wind generator to produce three times as much power.
Found: 25 Apr 2021 | Rating: 89/100
Download Cambridge IELTS With PDF, Audio And Answers
These can cause vibration and damage the blades of the turbines. Another slight concern is submerged debris floating into the blades. So far we do not know how much of a problem it might be. We will have to make the turbines robust because the sea is a hostile environment, but all the signs that we can do it are good. Which paragraph contains the following information? NB You may use any letter more than once. A It is a more reliable source of energy than wind power. B It would replace all other forms of energy in Britain. C Its introduction has come as a result of public pressure. D It would cut down on air pollution. E It could contribute to the closure of many existing power stations ln Britain.
Found: 7 Apr 2021 | Rating: 85/100
TOEFL, TOEIC, IELTS, FCE, PET ONLINE EXERCISES: CAMBRIDGE IELTS 13 TEST 4 (READING) PASSAGE 3
F It could be a means of increasing national income. G It could face a lot of resistance from other fuel industries. H It could be sold more cheaply than any other type of fuel. I It could compensate for the shortage of inland sites for energy production. J It is best produced in the vicinity of coastlines with particular features. Questions Label the diagram below. Information Theory — The Big Idea A In April an event took place which demonstrated one of the many applications of information theory. The space probe, Voyager I, launched in , had sent back spectacular images of Jupiter and Saturn and then soared out of the Solar System on a one-way mission to the stars.
Found: 26 Apr 2021 | Rating: 92/100
Cambridge Reading Test 3 Answers - Angkoo
After 25 years of exposure to the freezing temperatures of deep space, the probe was beginning to show its age. Sensors and circuits were on the brink of failing and NASA experts realized that they had to do something or lose contact with their probe forever. The solution was to get a message to Voyager I to instruct it to use spares to change the failing parts. With the probe 12 billion kilometers from Earth, this was not an easy task. Even traveling at the speed of light, it took over 11 hours to reach its target, far beyond the orbit of Pluto. Yet, incredibly, the little probe managed to hear the faint call from its home planet and successfully made the switchover. But it also highlighted the astonishing power of the techniques developed by American communications engineer Claude Shannon, who had died just a year earlier.
Found: 8 Apr 2021 | Rating: 87/100
IELTS MASTER | Cambridge IELTS 4 Tests
Born in in Petoskey, Michigan, Shannon showed an early talent for maths and for building gadgets, and made breakthroughs in the foundations of computer technology when still a student. While at Bell Laboratories, Shannon developed information theory, but shunned the resulting acclaim. In the s, he single-handedly created an entire science of communication which has since inveigled its way into a host of applications, from DVDs to satellite communications to bar codes — any area, in short, where data has to be conveyed rapidly yet accurately.
Found: 4 Apr 2021 | Rating: 90/100
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