Question: Read the following article and select the best answer. Article: Wild elephants live in herds of 10 to about 50. The leader is usually a female. A herd can go through a forest quietly. It travels in a single line. It goes about 6 miles an hour. When frightened, it may run at about 25 miles an hour. When they reach water, elephants swim across. They are great swimmers.     Elephants eat grass, leaves, small branches, and bark. They particularly like the tender leaves on the top of trees. How do they get these leaves? They use their heads to knock trees down. They can easily knock down a 30-foot tree. Elephants also eat berries, mangoes, coconuts, corn, and sugar cane. They love salt. A wild male adult eats 500 to 600 pounds of food a day.     Many people want to find the graveyards   of elephants. There is a strong belief that such graveyards exist. Here is why. Bones and tusks of dead elephants have almost never been found. Searches have been made in forests. Grassy plains have been searched too. But neither bones nor tusks are found. Elephants don't live forever. Where are their bones? They don't just bury themselves. Here is one belief. When an elephant gets sick or old, it instinctively knows death is near. It leaves the herd. It goes off to a secret graveyard. The place is known only to elephants, and perhaps other animals, but not to humans. Obviously, such a graveyard would be filled with tusks. These were once very valuable. The objective of explorers was to find this "gold" mine. This graveyard belief may be a truth or a myth. But it is romantic. It would be nice if it were true. Question: According to the passage, elephants' favorite foods are   _  . - grass, leaves, small branches and bark - tender leaves on the top of trees - berries, mangoes, coconuts, corn, and sugar cane - none of the above
Answer: tender leaves on the top of trees

Question: Read the following article and select the best answer. Article: "Beauty is only skin deep." This expression means that beauty is only a temporary surface quality. Some beauty products can cause lasting damage that goes far below the surface of the skin. In America,many people use sunlight and non-natural light to darken their skin. Health experts advise against what is called"tanning"because of its links to akin cancer. In the African country of Senegal ,some women take health risks trying to do just the opposite. An average beauty supply shop in Dakar has many kinds of skin-lightening creams and soaps. The World Health Organization says that 25%of Senegalese women use skin-lightening production a usual basis. These products can contain chemicals,like mercury ,hydroquinone ,etc. These are dangerous ingredients that can cause cancer and possibly other physical damage to the akin. They can actually burn the eyes and skin. Shop worker Adama Diagne advises her visitors to avoid the stronger products that promise fast results. She users a cream that is made from carrots,not the strong chemical,hydroquinone. She says that it is a personal choice and that no one pressures her. Some women want to be black every day,but for her,she likes to be a shade of brown. Women in Senegal say they lighten their skin for the same reason that women all over the world make changes to their appearance. They say they want to look beautiful,to find a husband, to stand out in a crowd or simply to look great for a special event. This thinking troubles Senegalese film-maker Khardiata Pouye Sall. So,she made"This Color That Bothers Me",a film about the subject of skin lightening. She said,"I used the most shocking images so that women would see the dangers. It is hard to understand why a woman says that dark skin is not beautiful. It is in their heads. They want to please a man,to he loved or they want to please society,to succeed." Ms. Sall says that the government needs to better control the marketing and the sale of skin-lightening products. But she adds that education is the best way to persuade... Question: We can infer that women in Senegal  _  . - attract attention with shockingimages - don't consider dark skin to be beautiful - find it hard to understand the true beauty - put beauty in the first place in their heads
Answer: don't consider dark skin to be beautiful

Question: Read the following article and select the best answer. Article: Imagine you're in a dark room, running your fingers over a smooth surface in search of a single dot the size of this period, How high do you think the dot must be for your finger to feel it? Scientists have determined that the human finger is so sensitive it can detect a surface bump just one micron(l0-6m)"high. The human eye, by contrast, can't tell anything much smaller than100 microns.No wonder we rely on touch rather than eyesight when faced with a new roll of toilet paper. Biologically, touch is the mother of all sensory  systems.It is an ancient sense in evolution: even the simplest single-celled living things can feel when something brushes up against them and will respond by moving closer or pulling away. It is the first sense aroused during a baby's development and the last to weaken at life's peak. Patients in a deep coma  who seem otherwise lost to the world will show skin reaction when touched by a nurse. "Touch ,is so central to what we are that we almost cannot imagine ourselves without it," said Chris Dijkerman."It's 'not like eyesight, where you close your eyes and you don't see anything. _ .It's always there." Long ignored in favor of the sensory heavyweights of eyesight and hearing, the study of touch lately:: has been gaining new concern among scientists.They're exploring the effects of recently reported false touch impressions, of people being made to feel as though they had three arms, for example, with the hope of gaining the true understanding of how the mind works. Others are turning to touch for more practical purposes: to build better touch screen instruments and robot hands, a more well-rounded virtual life.. "There's a fair amount of research into new ways of offloading information onto our sense of touch," said Lynette Jones. "To have your cell phone buzzing (making a low sound) as opposed to ringing turned out to have a lot of advantages in.some situations." Touch is our most active sense, our means of seizing the world and experiencing it 'first hand. Dr.Susan Lederman pointed... Question: In the view of  _  , movement is needed when we want to know something by touching. - the author - Chris Dijkerman - Lynette Jones - Susan Lederman
Answer: