Question: Mountain lions live in mountainous areas of the western prefix = st1 /United States. Lately, however, people have reported seeing them in quiet neighborhoods all across the country! Usually considered shy and seldom seen, these lions are becoming more noticeable. In addition, the lions appear to be moving east. They were even reported in the suburbs of Boston, Philadelphia, andChicago. It seems certain that these "Kings of the mountains" are moving. Why? Scientists are not sure. Some think that as the mountain lion population increases in the west, younger wild cats are leaving the area. These cats are searching for new homes and new places for food. "The young males are looking for new homes," says Lynn Sadler, who is the director of the Mountain Lion Foundation in Sacramento,Calif."People tend to create too many barriers, such as buildings, fences, roads, and noise. As the mountain lions seek new places and food and water sources, these barriers get in their way." The sightings  have made people increasingly watchful  . Sometimes the "mountain lions" that people report seeing turn out to be large dogs or even house cats. But at least a few of the meetings have been real. The building of new roads, the growing of suburbs and the growing popularity of outdoor activities are all increasing the chances that people in various parts of the country may meet up with a mountain lion. Because many people are concerned about the reappearance of the American lion, an expert outlined some ways they can avoid attracting the wild cats: Never leave pets or pet food outside; properly care for farm animals; and plan public land use to enable the lions to move safely from one place to another. "To be fair," says the expert, "mountain lions are trying to regain their homes. They were here first. Now we need to find ways we can live together." To avoid attracting mountain lions, people are advised   _  . A) to build more roads for the lions to move safely B) to keep a close watch on their farm animals C) not to stay outdoors D) not to raise pets
Answer: B

Question: At a primary school in a small town in the east of South Carolina, second-grade teachers Garneau and Lynne are convinced that separating elementary-age boys and girls produces immediate academic improvement in both genders . David Chadwell, South Carolina's expert of single gender education says, "Boys and girls learn, hear and respond to their surroundings differently.We can teach boys and girls based on what we now know." Male and female eyes are not organized in the same way, he explains.The organization of the male eye makes it sensitive to motion and direction."Boys understand the world as objects moving through space," he says. The male eye is also drawn to cooler colors like silver and black.It's no accident that boys tend to create pictures of moving objects instead of drawing the happy colorful family, like girls do in their class. The female eye, on the other hand, is drawn to warmer colors like red, yellow and orange.To attract girls, Chadwell says, the teacher doesn't need to move as much as in boy's class.Using descriptive phrases and lots of colors in presentations or on the blackboard gets their attention. Boys and girls also hear differently."When someone speaks in a loud tone, girls understand it as yelling," Chadwell says."They think you're mad and can shut down." Girls are more sensitive to sounds.He advises girls' teachers to watch the tone of their voices.Boys' teachers should sound more forceful, even excited. A boy's nervous system causes him to be more cautious when he is standing, moving, and the room temperature is around 69 degrees Fahrenheit.Stress in boys, he says, tends to increase blood flow to their brains, a process that helps them stay focused.Girls are more focused when seated in a warmer room around 75 degrees Fahrenheit.Girls also respond to stress differently.When exposed to threat and conflict, blood goes to their guts , leaving them feeling nervous or anxious. These differences can be applied in the classroom, Chadwell adds."Single gender programs are about making the... Which of the following students is most likely to be focused? A) A boy sitting in a warm room B) A standing boy who is faced with stress C) A girl standing in a cold room D) A girl who is facing a lot of pressure
Answer: B

Question: People and the sources of air pollution are found in the same places. This means that cities with large populations have the biggest problem of dirty air. Air pollution is caused by many different things. A major source of air pollution is the gas fumes from cars. Statistics show that 93 percent of all auto trips are within cities. Another major source of dirty air is the burning of coal and oil for energy. This energy is needed to make electricity. Of course, much more electricity is used in the city than in the country. On the average, we throw away more trash and garbage than the year before. The burning of garbage contributes to air pollution. Many major industries are also responsible for the dirty air in the around cities. The fumes from iron, steel, chemical, and petroleum production add particles to the air. The effects of air pollution range from mild headaches to death. The levels of pollution found in heavy for traffic may cause headaches for loss of clear vision. Wherever coal and oil are used for fuel, fumes may kill trees and plants and cause metal to corrode. In some of the larger cities, these fumes endanger the live of human beings by contributing to lung diseases and causing early death. Why is air pollution more grave in the city than in the country? A) Because there are larger populations in cities. B) Because the air in the city is dirty. C) Because there are more cars in the city. D) Because there are much more gas fumes from cars and burning of coal and oil for energy in the city than in the country.
Answer:
D