TASK DEFINITION: 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.
PROBLEM: Article: The relationship between humans and animals has always been complex. Some cultures have developed entire belief systems around favored animals. Even in cultures with less formal belief systems, connections between people and animals still lead to commonly accepted opinions about animals. These belief systems usually develop around the animals that interact with humans most frequently. Therefore, it should not be surprising that so many stories surround the most common of animals: rats. Rats live side by side with humans all over the world and regularly interact with people. Human-rat coexistence may be common all around the world, but different cultures respond to that closeness in different ways. In the United States and Europe, one typical attitude is that the rat is a pest. This could be due to the common belief that rats spread disease. Actually, they don't, at least not directly, but many people don't know that. The Pied Piper of Hamlin, a well-known children's story, is one example of how rats have been described in Western literature: in that story, rats cause such a problem that a town has to hire a piper to call them all away. In many Latin American countries, the rat is described in a very different way. The story of the tooth fairy (a fairy believed by children to leave money while they sleep in exchange for a tooth that has come out) is common all over the world, but in Latin America, the "fairy" is a rat! Rats do have very strong teeth, which could explain the association. Clearly, this shows another attitude toward rats that is much more positive. Yet another attitude toward the rat can be seen in the Chinese Zodiac . The Rat is one of the animals of the Zodiac. Like the other zodiac animals, the Rat is neither entirely good nor entirely bad. It's described as clever and friendly, but also tricky and not entirely honest. That may be the most accurate description of the rat so far. Whether you like rats or not, it's hard to deny their reputation for cleverness. As many people are discovering these days, rats can even make excellent pets, so long as you remember to close the cage carefully!
Answer: How different cultures look at rats.

SOLUTION: What does the passage mainly talk about?

PROBLEM: Article: In Western countries people have been using the installment plan since the first half of the twentieth century. Today, a large number of families in Great Britain buy furniture, household goods and cars by installments .In the U.S., the figure is much higher than in Great Britain, and people there spend over 10 percent of their income on the installment plan. The price of an article bought on installments is always higher than the price that would be paid by cash. There is a charge for interest. The buyers pays one quarter or one third of the price as a down payment when the goods are delivered to him. He then makes regular payments, weekly or monthly, until the full price is paid up. The legal ownership of the goods remains with the seller until the final payment has been made. Installment buying has advantages and disadvantages. It can help couples with small incomes to furnish their homes and start housekeeping, It increases the demand for goods, and in this way helps business and employment. There is ,however, the danger that when business is bad, installment buying may end suddenly, making business much worse. This may result in a great increase in unemployment. If the people on the installment plan lose their jobs, they will probably not be able to make their payments. If great numbers of people are not able to pay their installment debts there is a possibility that businessmen cannot collect their debts and will therefore lose money. If businessmen lose money or fail to make a satisfactory profit, it becomes more likely to have a depression. This is why, in some countries, the government controls the installment plan by fixing the amount of the down payment to discourage people from buying more than they can pay for on the installment plan.
Answer: The payment of installment buying is easier than buying by cash.

SOLUTION: Which of the following is true about the installment plan?

PROBLEM: Article: The way we cook is important. In many countries, the two sources of heat used for cooking are natural gas or electric stoves. The World Health Organization(WHO) warns that millions of people are dying every year from indoor air pollution. The WHO finds that poor cooking, heating and lighting technologies are killing millions of people each year. Indoor air pollution results from the use of dangerous fuels and cook stoves in the home. WHO officials say nearly three billion people are unable to use clean fuels and technologies for cooking, heating and lighting. And they say more than seven million people die from exposure to indoor or outdoor air pollution each year. Of that number, the WHO says about 4.3 million people die from household air pollution given off by simple biomass and coal stoves. These findings show that the home use of poisonous fuels is to blame for many of these deaths. These fuels include wood, coal, animal waste and so on. Carlos Dora is Coordinator in the WHO' s Department of Public Health, Environmental and Social Determinants of Health. He says people should not use unprocessed coal and kerosene fuel indoors. He says opening a window or door to let out the harmful air will not correct the situation. It will only pollute the outdoors. "New technologies and clean fuels can rid people of this problem." The United Nations found that more than 95 percent of families in sub-Saharan Africa depend on solid fuels for cooking. It says huge populations in India, China and Latin American countries, such as Guatemala and Peru, are also at risk. Nigel Bruce is a professor of Public Health at the University of Liverpool. He says researchers are developing good stoves and other equipment to burn fuels in a more efficient way."There are already many technologies for clean fuels available now. An effective and reasonably low-cost ethanol stove that is made by Dometic (a Sweden-based company)is now being tested out. Another interesting development is electric induction stoves." In India, you can buy an induction stove for about $8. And in Africa you can buy a solar lamp for less than $1.
Answer: People should use new technologies and clean fuels.

SOLUTION:
According to Carlos Dora, what is the best solution to indoor air pollution?