Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Can you believe your eyes? A recent experiment suggests that the answer to that question may depend on your age. Martin Doherty, a psychologist at the University of Stirling in Scotland, led the team of scientists. In this experiment, Doherty and his team tested the perception of some people, using pictures of some orange circles. The researchers showed the same pictures to two groups of people. The first group included 151 children aged 4 to 10, and the second group included 24 adults aged 18 to 25. The first group of pictures showed two circles alone on a white background. One of the circles was larger than the other, and these people were asked to identify the larger one. Four-year-olds identified the correct circle 79 percent of the time. Adults identified the correct circle 95 percent of the time. Next, both groups were shown a picture where the orange circles, again of different sizes, were surrounded by gray circles. Here's where the trick lies in. In some of the pictures, the smaller orange circle was surrounded by even smaller gray circles -- making the orange circle appear larger than the other orange circle, which was the real larger one. And the larger orange circle was surrounded by even bigger gray circles -- so it appeared to be smaller than the real smaller orange circle. When young children aged 4 to 6 looked at these tricky pictures, they weren't fooled -- they were still able to find the bigger circle with roughly the same accuracy as before. Older children and adults, on the other hand, did not do as well. Older children often identified the smaller circle as the larger one, and adults got it wrong most of the time. As children get older, Doherty said, their brains may develop the ability to identify visual context. In other words, they will begin to process the whole picture at once: the tricky gray circles, as well as the orange circle in the middle. As a result, they're more likely to fall for this kind of visual trick. Options: A Because they are smarter than older children and adults. B Because older people are influenced by their experience. C Because people's eyes become weaker as they grow older. D Because their brain can hardly notice related things together. Answer: D Because their brain can hardly notice related things together. Question:
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The answer is:
Why are younger children not fooled?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Penguins can taste only sour and salty food, scientists have discovered. A genetic study suggests the flightless birds lost three of the five basic tastes long ago in evolution. Taste is critical for survival in most animals, but may not matter in the penguin, which swallows fish whole, say researchers in China and the US. Many other birds are unable to taste sweet things, but they do have receptors for detecting bitter and umami (or meaty) flavours. The discovery was made when researchers decoding penguin genomes found some of the taste genes were missing. A closer look at the DNA of penguins revealed that all species lack functioning genes for the receptors of sweet, umami, and bitter tastes. "Based on genetic data, penguins are believed to have sour and salty tastes, but have lost sweet, umami, and bitter tastes," lead researcher Prof Jianzhi Zhang, of the University of Michigan, US, and Wuhan University, China, told the reporter. The umami taste gives food the strong, savoury flavour associated with meat. Lacking this sense is surprising for a carnivorous animal, but does not matter that much in the penguin, which swallows fish without chewing. "Their behaviour of swallowing food whole, and their tongue structure and function, suggest that penguins need no taste perception," said Prof Zhang. "Although it is unclear whether these traits are a cause or a consequence of their major taste loss." The findings, published in Current Biology journal, were a puzzle, he added. One clue comes from the bird's evolution on the frozen ice sheets of Antarctica. Sending signals from sweet, umami, and bitter (but not sour or salty) taste receptors to the brain does not work at very low temperatures. This may have led to the penguin gradually losing its sense of taste, say the researchers. Intriguingly , the sweet taste is missing in almost all birds. The hummingbird, which feeds on sweet nectar, is an exception. Options: A The penguin. B The hummingbird. C The polar bear. D The fish. Answer: B The hummingbird. Question:
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The answer is:
Which of the following animals can taste sweet flavour according to the passage?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Three--quarters of a million tourists flock to the white beaches every year,but this booming industry has come at a price.Poisonous smoke rising from open fires,rubbish made up of plastic bottles,packets...it'S a _ from the white sands,clear waters and palm trees that we associate with the Maldives ,the paradise island holiday destination set in the Indian Ocean. of its 200 inhabited islands,which are spread across an area of"35,000 square miles,99 are good resorts .So many tourists come every year,more than double the local population.Of these,over l 00,000 travel from the U K.The capital,Mal6,is four times more densely populated than London.Given these facts,it'S hardly surprising that the Maldives has a waste disposal problem. Y ears a90,when the tourists left,the government had to deal with a stream of rubbish.Their solution was to turn one of the islands into a dumping ground.Four miles west of Mal6 is the country's dumping ground,Thilafushi.What you are seeing here is a view of the Maldives on which no honeymooners will ever clap eyes.Each visitor produces 3.5 kg of waste per day.The country dumps more than 330 tons of rubbish on the island every day. Now,since many waste boats,fed up with waiting seven hours or more,directly offload their goods into the sea,the government of the Maldives has banned the dumping of waste on the island.S0,the waste boats ship the rubbish to India instead. Options: A To attract more tourists to the Maldives. B To state the waste disposal problem in the Maldives. C To call on us to protect the environment. D To explain the causes of pollution in the Maldives. Answer: B To state the waste disposal problem in the Maldives. Question:
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The answer is:
What'S the author'S purpose in writing the text?