Read the following article and select the best answer. Article: Sustainable development is applied to just about everything from energy to clean water and economic growth, and as a result it has become difficult to question either the basic assumptions behind it or the way the concept is put to use. This is especially true in agriculture, where sustainable development is often taken as the measure of progress without a proper appreciation of historical and cultural perspectives. To start with, it is important to remember that the nature of agriculture has changed markedly throughout history, and will continue to do so. Medieval agriculture in northern Europe fed, clothed and sheltered a mainly rural society with a much lower population density than it is today. It had minimal effect on biodiversity, and any pollution it caused was typically localized. In terms of energy use and the nutrients captured in the product it was relatively inefficient. Contrast this with farming since the start of the industrial revolution. Competition from overseas led farmers to specialize and increase yields. Throughout this period food became cheaper, safer and more reliable. However, these changes have also led to habitat loss and to reducing biodiversity. All this means that agriculture in the 21st century will have to be very different from how it was in the 20th. This will require thorough thinking. For example, we need to move away from the idea that traditional practices are certainly more sustainable than new ones. We also need to abandon the notion that agriculture can be "zero impact". The key will be to abandon the rather simple and static measures of sustainability, which centre on the need to maintain production without increasing damage. Instead we need a more dynamic interpretation, one that looks at the pros and cons of all the various way land is used. There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity. It is clear, for example, that the carbon of transporting... Question: Specialization and the effort to increase yields have resulted in _ . - Localized pollution - The shrinking of farmland - the decrease of biodiversity - competition from overseas
the decrease of biodiversity

(Question)
Read the following article and select the best answer. Article: In the United States, there were some well-constructed houses for native Indians, ranging from the simple brush shelter to the five-storied pueblo. In the eastern United States, one of the existing types was that commonly know under the Algonkian name of wigwam in which the Iroquois Indians lived. The wigwams were of wagon-top shape with straight sides and ends, made by bending young trees to form the round shape. Over this shape pieces of tree bark were laid to protect the Indians from bad weather. Over the bark dried grass was added. A small hole allowed smoke to escape from the top. Doorways at each end served also as windows, The Iroquois Indians built trunk walls all around their villages. The wall had only one opening, They could quickly close this opening if their enemies came near. Interestingly, the Choctaw Indians in Mississippi also lived in a wigwam of a most primitive construction, but different from those of the Iroquois Indians. The Choctaw Indians' wigwams, made from mud, cane and straw, were in the form of a bee-hive. The covering was made of a long, tough grass. A post in the centre supported the roof. A hole in the top admitted the light, and allowed the smoke to pass out. The tipi tent-housing of the upper lake and plains area was put up with poles set lightly in the ground, tied together near the top, and covered with bark and grass in the lake country. It was easily portable, and two women could set it up or take it down within an hour. The Pawnee, Mandan and other Indian tribes along the Missouri built solid ring-shaped structures of trunk, covered with earth and dried grass, housing a dozen families. The Wichita and other tribes of the Texas border built large ring-shaped houses covered with dried grass. K^S*5U.C Apart from the regular housing, almost every tribe had some style of housing. Question: All the native Indian houses described in the passage were _ . K^S*5U.C - of the same shape - covered with grass - built with a post in the centre - built with doorways at each end
(Answer)
covered with grass

Ques: Read the following article and select the best answer. Article: It was something she had dreamed of since she was five. Finally, after years of training and intensive workouts, Deborah Duffey was going to compete in her first high school basketball game. The goals of becoming an outstanding player and playing college ball were never far from Deborah's mind. The game was against Mills High School. With 1 minute and 42 seconds left in the game, Deborah's team led by one point. A player of Mills had possession of the ball,and Deborah ran to guard against her. As Deborah was running to block the player, her knee went out and she fell down on the court in burning pain. Just like that, Deborah's season was over. After suffering the bad injury, Deborah found that, for the first time in her life, she was in a situation beyond her control. Game after game, she could do nothing but sit on the sidelines watching others play the game that she loved so much. Injuries limited Deborah's time on the court as she hurt her knees three more times in the next five years. She had to spend countless hours in a physical clinic to receive treatment. Her frequent visits there gave her a passion and respect for the profession. And Deborah began to see a new light in her life. Currently as a senior in college, Deborah focuses on getting a degree in physical treatment. After she graduates, Deborah plans to use her knowledge to educate people how to best take care of their bodies and cope with the feelings of hopelessness that she remembers so well. Question: How did Deborah feel when she first hurt her knee? - Calm. - Confused. - Ashamed. - Disappointed.
Ans: Disappointed.

Ques:Read the following article and select the best answer. Article: What would life be like without rich, creamy, mouthwatering, melt-in-your-mouth chocolate? Life would be bitter for most Americans. They spend about $13 billion a year buying all sorts of chocolate treats. However, for the African children who toil under slavelike conditions on cacao plantations, life is not sweet. The cacao bean is the main ingredient in the chocolate. According to a 2002 survey by the International Institute of Tropical Agriculture and the US Agency for International Development, about 284,000 children work in dangerous conditions on cacao farms in western Africa. More than half those children are younger than 14. Many were sold into forced labor to work 12 hours or more a day on the cacao plantations. A number of international organizations, including several African governments, recently began a program to eliminate child labor on cacao plantations. Under the program, government officials will remove children from abusive working situations while teaching farmers about child labor issues. The program will also make borrowing money easier for cacao farmers. Officials hope farmers will use the money to invest in their farms and hire paid laborers. Question: From the passage, you can reasonably conclude that _ . - cacao farms in western Africa rely heavily on child labor - children in Africa know how to make the best chocolate - candy bars sold in the United States are made on plantations in Africa - eating too much chocolate is bad for your health

Ans:
cacao farms in western Africa rely heavily on child labor