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1. It is commonly thought in our society that preserving the environment is somehow linked with compromising on economic terms. However, studies show that the use of green technologies and renewable sources of energy should solve the energy crisis to a great extent without putting any burden on the existing natural resources, which means the economic growth of the country/region in question doesn't get hampered owing to environmental concerns. It is the greed to possess and enjoy as many luxuries as possible that has led to the state in which we find ourselves, today.

Description: The myth persists that in 1492 the Western Hemisphere was an untamed wilderness and that it was European settlers who harnessed and transformed its ecosystems. But scholarship shows that forests, in particular, had been altered to varying degrees well before the arrival of Europeans. Native populations had converted much of the forests to successfully cultivated stands, especially by means of burning. Nevertheless, some researchers have maintained that the extent, frequency, and impact of such burning was minimal. One geographer claims that climatic change could have accounted for some of the changes in forest composition; another argues that burning by native populations was done only sporadically, to augment the effects of natural fires. However, a large body of evidence for the routine practice of burning exists in the geographical record. One group of researchers found, for example, that sedimentary charcoal accumulations in what is now the northeastern United States are greatest where known native American settlements were greatest. Other evidence shows that, while the characteristics and impact of fires set by native populations varied regionally according to population size, extent of resource management techniques, and environment, all such fires had markedly different effects on vegetation patter than did natural fires. Controlled burning crated grassy openings such as meadows and glades. Burning also promoted a mosaic quality to North and south American ecosystems, creating forests in many different stages of ecological development. Much of the mature forest land was characterized by open herbaceous undergrowth, another result of the clearing brought about by burning. In North American, controlled burning crated conditions favorable to berries and other fire-tolerant and sun-loving foods. Burning also converted mixed stands of trees to homogeneous forest, for example the longleaf, slash pine, and scrub oak forests of the southeastern U.S. natural fires do account for some of this vegetation, but regular burning clearly extended and maintained it. Burning also influenced forest composition in the tropics, where natural fires are rare. An example is the pine-dominant forests of Nicaragua, where warm temperatures and heavy rainfall naturally favor mixed tropical or rain forests. While there are primarily grow in cooler, drier, higher elevations, regions where such vegetation is in large part natural and even pre human. Today, the Nicaraguan pines occur where there has been clearing followed by regular burning, and the same is likely to have occurred in the past: such forests ere present when Europeans arrived and were found only in areas where native settlements were substantial; when these settlements were abandoned, the land returned to mixed hardwoods. This succession is also evident elsewhere in similar low tropical elevations in the Caribbean and Mexico.

2. The word "succession" mentioned in last line refers to

3. A majority of Americans surveyed believe religious liberty is under attack at present but that they will, or could, be finally protected in the future.

Description: After the new management team was established, the covers of our newspaper have featured only celebrity gossip, while, in the past, the front page had reported only political and economic stories. The management team claimed that the changes made the newspaper more attractive. The journalists, however, complained that the new manager team is more interested in increasing sales than in reporting important news events.

4. Which of the following is an assumption necessary for the argument made by the employees? 

5. Today because of improvements in agricultural technology the same amount of acerage produces double the apples that it has in 1910

6. Regarded by opponents as harmful to economy and by supporters as good for life, the fight over the long vocation continues in Switzerland.

7. Even their most vociferous supporters concede that no less than a technological or scientific breakthrough is necessary before nuclear energy can meet the goal of providing half of the country’s energy needs.

8. Despite the increasing number of people shopping online, Mecy’s executives are convinced that, just as one-third of travelers still prefer travel agents to self-service ticketing system, many people will still purchase in department store.

9. His mother made great sacrifices to educate him, moving house on three occasions, and severing the thread on her loom's shuttle whenever Mencius neglected his lessons to make him understand the need to persevere.

10. What brought the Greek banks company back from the verge of bankruptcy shortly after the economic crisis in 2008-09 was a special, government sanctioned bailout allowed during a period of strict fiscal and monetary controls.

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