Read the article and select the best answer. Article: Two brightly colored butterflies have just flown by. They seems to be exactly alike, but actually one is a little larger than the other. The larger insect has a wingspread of up to four inches. The smaller one has a wingspread of less than three inches and also a black line on its back wings. At first sight, it is hard to tell them apart. Would you guess from this that they are different-sized butterflies of the same species? Or that they are different species of butterflies but close relatives belonging to the same family? If you said yes to either question, you would be wrong, for these look-alikes belong to quite different families. The larger insect is the monarch butterfly . As a baby insect, the monarch feeds on milkweed, which seems to give the monarch a disagreeable taste and smell. The bright coloring of the monarch acts as a warning sign to its enemy. Birds that eat butterflies soon recognize the monarch and quickly learn to leave it alone. The smaller insect is the viceroy , which feeds on the leaves of trees. Birds would find this insect tasty, but because it looks like the monarch, birds keep away from it. The viceroy's similarity to the monarch gives it some protection from its enemies and helps it survive. There are other pairs of look-alike butterflies, bees and moths. In each case, one either has a disagreeable taste or smell, or can give a painful sting . The larger is called the model. The insect that imitates this model for protection is called the mimic. Question: Which of the following statements is TRUE? Options: A: There are few look-alikes among insects. B: The monarch butterfly and the viceroy are not close relatives. C: There are only a few species of butterflies in the wild. D: A monarch butterfly rules the world of butterflies.
B

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Read the article and select the best answer. Article: With the Tesla Roadster and other plugin electric vehicles hitting the road,demand is growing for accessible refueling points to recharge them. Carbon Day Automotive, a Chicagobased company,has now demonstrated a solarpowered recharging point, known as the Solar PlugIn Station,which lets motorists easily charge their cars using electricity that has been produced without any environmental damage. The Solar PlugIn Station has gone on show in Chicago as part of the city's bid to host the 2016 Olympic Games. According to Carbon Day Automotive,the Solar PlugIn Station on show in Chicago is part of the vital infrastructure required for electric vehicles in Chicago and was the focus of a recent visit by the International Olympic Committee. These solarpowered electricity points will be used daily to fuel the city's electric vehicles with power from the sun. By producing the electricity from pollutionfree solar cell, the CO2 emissions are reduced to zero. "Solar energy and electric vehicles are a partnership that is one more step to reducing our dependence on foreign oil," says Richard Lowenthal, CEO of Coulomb Technologies.Coulomb Technologies recently developed the components required for individual recharging stations,marketed as ChargePoint Networked Charging Stations.Carbon Day Automotive is the Midwest distributor for the ChargePoint stations. The Solar PlugIn Station consists of giant solar panels that shade the tiny ChargePoint Networked Charging Station.The solar panel is connected to an underground battery pack,ready for everyday refueling. "Without these stations it would be like driving around in a traditional car without the availability of gas stations," says Scott Emalfarb,CEO at Carbon Day."The day of true plugin electric vehicles will be here sooner than most people realize and the world needs to be ready to accommodate(......)them." Question: The Solar PlugIn Station is used as part of the bid to host the Olympics mainly because _ . Options: A: it's environmentally friendly B: it makes up for the lack of electricity C: it's a new idea and attracts people's attention D: it brings convenience to electric vehicle users
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A

Read the article and select the best answer. Article: A car that runs on coffee is unveiled(shown to the public for the first time)today but at between 25 and 50 times the cost of running a car on petrol, the invention won't please any motor industry accountants. Nicknamed the Car-puccino, it has been created using a 1988 Volkswagen Scirocco bought for PS400 and it was chosen because it looked like the time-traveling DeLorean in the movieBack To The Future.The car will be driven the 210 miles between Manchester and London powered only by roasted coffee granules .It has been built by a team from the BBC1 science programme Bang Goes The Theory and will go on display at the Big Bang science fair in Manchester to show how fuels other than traditional petrol can power vehicles. The team calculates the Car-puccino will do three miles per kilo of ground coffee -- about 56 cups of espressos per mile.The journey will use about 70 kilos of ground coffee which, at supermarket prices of between PS13 and PS26 a kilo depending on brand and quality, will cost between PS910 and PS1,820, or between 25 and 50 times the PS36 cost of petrol for the journey.In total, the trip will cost 11,760 espressos, and the team will have to take 'coffee breaks' roughly every 30 to 45 miles to pour in more granules.They will also have to stop about every 60 miles to clean out the 'coffee filters' to rid them of the soot and tar which is also generated by the process.So despite a top speed of 60mph, the many stops mean the going will be slow, with the journey taking around ten hours. Sadly, the inventors will still have to pay duty on their coffee fuel---even though tax collectors at Her Majesty's Revenue and Custom haven't yet worked out how much. Nick Watson, producer of Bang Goes The Theory, said, "Coffee, like wood or coal, has some carbon content so you can use it as a fuel.The coffee needs to be very dry and in granules to allow the air to move through the pile of coffee as it burns.The brand doesn't matter." He said the same technology could be used to power a car on other unusual... Question: How much ground coffee will be used to cover a distance of 126 miles in this car? Options: A: About 70 kilos B: About 42 kilos. C: About 32 kilos D: About 30 kilos
B