In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
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Question: Article: Seven years ago I was 13 years old. I still remember to this day where I was and how it all came down. I was in my social studies classroom, when a teacher came back and told us that the first building of the World Trade Center was hit by a plane. We immediately stopped our work and turned on the television. Throughout half the day we watched TV until the school was forced to let all of us home early. I walked home and immediately turned on the television and watched until my bedtime. I remember always seeing the towers walking to my Tae Kwon Do school; to me, a boy teenager, it was a great thing because at that time I have never seen any other building that caught my eye as much as _ did. And walking to my school that day was just a horrifying dream. Crossing the busy road of the Bell Pike was a big cloud of smoke and dust. It was very upsetting. Every day after that horrific day I looked up to the once stood Twin Towers just to see nothing there. To my eyes, that day will always be in my mind and in my heart, even though I didn't lose any loved ones, I still feel the pain as if I did. September 11th, 2001 will never be forgotten.
Answer: He was in the classroom.

Answer: Where was the writer when the tragedy took place?

Question: Article: Watching a child struggle to breathe during as asthma attack is frightening for any parent. So it is only natural that most moms and dads will try just about anything, including spending a lot of money -to keep an attack at bay. Trouble is, more than half of parents are trying strategies that simply do not work and wasting hundreds of dollars in the process. According to Dr. Machael Cabana, a pediatrician at the prefix = st1 /UniversityofMichigan's C.S. Mott Children's Hospital, who led the study, one of the most common mistakes was to buy mattress cover to protect against dust mites for a child whose asthma instead was made by plant pollen . Many of those parents then neglected to do what would have helped a lot more; shut the windows to keep pollen out. Another was using a humidifier for a child who was allergic to dust mites; a humidifier tends to be a place where dust mites like to breed. With those allergies, a dehumidifier works better. Worst of all was the number of smokers with asthmatic children who didn't even try to quit or at least limit themselves to smoking outdoors rather than just moving to another room or the garage. Many smoking parents purchased expensive air filters that have what Cabana called " questionable utility. " Part of the problem, Dr. Caban and his colleagues believe, is that parents are bombarded by television ads that encourage them to buy products such as air and carpet fresheners, ionizers and other remedies that are often expensive but medically unnecessary. And doctors may not always take the time, or have the time, to explain to parents what will and won't work in their child's particular case. For example, allergies are usually a problem for older children with asthma, while kids 5 and younger more frequently have trouble with viral repiratory infections. So make sure you understand what the cause of your child's asthma really is.
Answer: Closing the windows to keep pollen out of the house.

Answer: What can help the children who are asthmatic according to the passage?

Question: Article: Mapping Your World Different forms of maps are appearing.They allow independent travelers to get local knowledge of places they are visiting, from the official to the unusual.Meanwhile, hi-tech developments are creating new ways for us to map the world.Here are two of our favorites: Green Maps Green Maps allows people to share with the world their knowledge of environmentally friendly places and attractions in the local areas.Users add information with a set of icons , making it easy to read any map, whatever the nationalities of those who produce it.At present there are over five hundred map projects being developed in 54 countries.Green Maps' advertised idea is "think global, map local".It is a wonderful way of gaining all sorts of information of a place, ranging from community gardens to good places of birdwatching. Green Maps is not specifically intended for travelers.Not all of its maps are online, so it may be necessary for some users to communicate with the producers through the Green Maps website. Maps Mashups Many people use online maps developed by Google, but not many know about the mashups of them.Working in a similar way to Green Maps, Map Mashups allows people to add icons of their own to existing maps to express a certain topic.The mashups is so called because it combines all the knowledge you could ever need.It ranges from the extremely useful, such as where all the World Heritage Sites are, to the most bizarre ,such as where America's drunkest cities are.With the mashups added to the basic Google Maps, a multi-layered map can be created.
Answer: Introducing local attractions with icons

Answer:
According to the passage, which of the following is a characteristic of Green Maps?