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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions Plants and animals will find it difficult to escape from or adjust to the effects of global warming. Scientists have already observed shifts in the lifecycles of many plants and animals, such as flowers blooming earlier and birds hatching earlier in the spring. Many species have begun shifting where they live or their annual migration patterns due to warmer temperatures.With further warming, animals will tend to migrate toward the poles and up mountainsides toward higher elevations. Plants will also attempt to shift their ranges, seeking new areas as old habitats grow too warm. In many places, however, human development will prevent these shifts. Species that find cities or farmland blocking their way north or south may become extinct. Species living in unique ecosystems, such as those found in polar and mountaintop regions, are especially at risk because migration to new habitats is not possible. For example, polar bears and marine mammals in the Arctic are already threatened by dwindling sea ice but have nowhere farther north to go.Projecting species extinction due to global warming is extremely difficult. Some scientists have estimated that 20 to 50 percent of species could be committed to extinction with 2 to 3 Celsius degrees of further warming. The rate of warming, not just the magnitude, is extremely important for plants and animals. Some species and even entire ecosystems, such as certain types of forest, may not be able to adjust quickly enough and may disappear. Ocean ecosystems, especially fragile ones like coral reefs, will also be affected by global warming. Warmer ocean temperatures can cause coral to “bleach”, a state which if prolonged will lead to the death of the coral. Scientists estimate that even 1 Celsius degree of additional warming could lead to widespread bleaching and death of coral reefs around the world. Also, increasing carbon dioxide in the atmosphere enters the ocean and increases the acidity of ocean waters. This acidification further stresses ocean ecosystems. Scientists have observed that warmer temperatures in the spring cause flowers to ______.
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions Being repeatedly late may just be accidental – or could it show a deeply rooted psychological desire to express your own superiority? When I worked in an office, meetings would often start late, usually because of a certain individual. Then they would overrun and the whole day lost its shape. But the individual was high-ranking and self-important: nobody challenged. So what are the ethics of lateness?            There’s a psychotherapist called Irvin Yalom who argues that all behaviour reflects psychology. Just as people who like to be on time are motivated by certain deep-seated beliefs, so those who make others wait are acting out an inner agenda, often based on an acute sense of power. There’s famous footage in which Silvio Berlusconi kept Angela Merkel waiting while he made a call on his mobile. It speaks volumes.            But that is when all lateness is in one’s control. What about when your train is cancelled or your flight is delayed or you had to wait longer for the plumber to arrive? In such cases, there’s not a lot of psychology involved. Or is there? Some people will genuinely worry about the impact it will have on those left waiting, while others might secretly enjoy the power of their absence.            The essential fact is that lateness means breaking a convention – you can only be late in respect of a time agreed with other people. Regardless of psychology, it has a social value. And when we treat other people’s time as less valuable than our own, we treat them as inferior. What is the main idea of the passage?