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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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Article: Maybe you don't know the fact that the green forests we see from an airplane or from the highway can be false. Because centuries ago forests were twice as many as what they are today. A hike into many of those woods will tell different stories, too--of diseases and insects that are slowly killing trees, of some forests that are burned by fire, of logging that local people do more often. Deforestation and degradation of the world's forests mainly harm the basic ability of those ecosystems to function or provide services, such as fresh water, air, plants and animals, which benefit people everywhere and keep the balance of nature. Deforestation Forests today are a small part of what they once were. Nearly half of the world's forest cover is gone, and each year 40 million acres more are cut and replaced by agriculture and development. Over the next 45 years, wood use in the world is guessed to increase by 50 per cent over its present rate. Many of the forests that remain are severely destroyed, which harms the ability to protect birds or wild animals, and to supply natural resources to people. Deforestation also brings about between 20 per cent and 25 per cent of all air pollution causing global climate change. Degradation Forests continue to be degraded by some uses such as the gathering of wood for fuel, the arrival of pests and diseases that kill trees, the effects of climate change and poor management such as the fire, flood and so on.
Answer: The ability of the ecosystems to function.
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What do deforestation and degradation of the forests mainly harm?

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Article: A painting by Chinese artist Qi Baishi set a record for modern art andcalligraphy on the mainland when it sold for 425.5 millionyuanat anauction on May 22. The sale was a milestone in the auction of modern and contemporary artworks. The price meant its value had risen more than 2,000 per cent in six years . The work ,Eagle standing on pine tree with four-character coupleti , measures about 2.6 metres by 1 metre . It was the second highest price paid for an artwork on the mainland . A Song dynasty work by Huang Tingjian was sold for 436.8 millionyuanin 2010 . Qi's painting was finished in 1946 when Qi was 86 , and was his largest work . With a starting price of 88 millionyuan, it attracted nearly 50bids in half an hour . Shanghai businessman Liu Yiqian said that the work had belonged to him and had cost less than 20 millionyuanin 2005 . The auction company said the work was brought back to the mainland after being bought from a private owner in San Francisco six years ago . China ranked first in global art sales last year , ahead of the United States and Britain . Four Chinese artists were among the top 10 in worldwide sales : Qi Baishi , Zhang Daqian , Xu Beihong and Fu Baoshi . Qi's works ranked second in sales to Pablo Picasso's last year . Qi was born into a peasant family in Hunan in 1864 . He taught himself to paint and focused on nature including plants , insects , birds and fish . He is mostly well-known for his paintings of shrimps . In 1953 , he was elected president of the Association of Chinese Artists . He died in Beijing in 1957 .
Answer: The Value of Qi Baishi's Paintings Is on the Increase .
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What's the best title of the text ?

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Article: 'Well,' began Enfield, 'I was coming home about three o'clock on a black winter morning, when suddenly I saw two people. The first was a short man who was walking along the street, and the second was a little girl who was running as fast as she could. Well, the two bumped into each other and the child fell down. Then a terrible thing happened. The man calmly walked all over the child's body with his heavy boots, and left her screaming on the ground. It was an inhuman thing to do. I ran after the man, caught him and fetched him back. There was already a small crowd around the screaming child. The man was perfectly cool, but he gave me a very evil look, which made me feel sick in my stomach. The child's family then arrived, and also a doctor. The child had been sent to fetch the doctor for a sick neighbor, and was on her way home again. '"The child is more frightened than hurt," said the doctor -- and that, you would think, was the end of the story. But, you see, I had taken a violent dislike to the short man. So had the child's family -- that was only natural. But the doctor, who seemed a quiet, kind man, was also looking at our prisoner with murder in his eyes. 'The doctor and I understood each other perfectly. Together we shouted at the man, and told him we would tell this story all over London so that his name would be hated. 'He looked back at us with a proud, black look. "Name your price," he said. 'We made him agree to a hundred pounds for the child's family. With another black look, the man led us to that door over there. He took out a key and let himself into the building. _ he came out and handed us ten pounds in gold and a cheque for ninety pounds from Coutts's Bank. The name on the cheque was a well-known one. '"See here," said the doctor doubtfully, "it isn't usual for a man to walk into an empty house at four in the morning and come out with another man's cheque for nearly a hundred pounds." '"Don't worry," said the man with an ugly look, "I'll stay with you until the banks open, and change the cheque myself." 'So we all went off, the doctor and the prisoner and myself, and spent the rest of the night at my house. In the morning we went together to the bank. Sure enough, the cheque was good, and the money was passed to the child's family.'
Answer: The doctor did not trust the short man and disliked him.
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Which of the following is true according to the passage above?