In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
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Question: Article: Against the supposition that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space. This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over the next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling. This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat. Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone  levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling. "We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere." Scientists tracked the change in the amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicted, 0.5 watts per square meter of area burned are _ by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth. 
 Answer: result in a warming climate

Answer: .According to the new findings, taking steps to prevent northern forest fires may   _  .


Question: Article: Perhaps the most astonishing theory to come out of kinetics,the study of body movement,was suggested by Professor Ray Birdwhistell.He believes that physical appearance Is often culturally programmed.In other words,we learn our looks;we are not born with them. A baby generally unformed facial features.A baby,according to Birdwhistell,learns where to set the eyebrows by looking at those around family and friends.This helps explain why the people of some regions of the United States look so much lilke.New Englanders or Southerners have certain common facial characteristics that cannot be explained by genetics .The exact shape of the mouth is not set at birth,it is learned later.In fact,the final mouth shape is not formed until well after permanent teeth are set.For many,this can be well into adolescence .A husband and wife together for a long time often come to look somewhat alike.We learn our looks from those around us. This is perhaps why in a single country there are areas where people smile more than those in other areas.In the United States,for example,the South is the part of the country where the people smile most frequently.In New England they smile less,and in the western part of New York State still less.Many Southerners find cities such as New York cold and unfriendly,partly because people on Madison Avenue smile less than people on Peach Tree Street jn Atlanta,Georgia.People in densely populated urban areas also tend to smile and greet each other in public less than people in rural areas and small towns. 
 Answer: body movement

Answer: The passage might be taken out of a book dealing with  _


Question: Article: Is there a magic cutoff period when children become responsible for their own actions? Is there a wonderful moment when parents can become lookers-on in the lives of their children and shrug , "It's their life," and feel nothing?  When I was in my twenties, I stood in a hospital passage waiting for doctors to put a few stitches in my son's head. I asked, "When do you stop worry?" The nurse said, "When they get out of the accident stage. " My mother just smiled gently and said nothing.                When I was in my thirties, I sat on a little chair in a classroom and heard how one of my children talked continually and disturbed the class. As if to read my mind, a teacher said. "Don't worry, they all go through this stage and then you can sit back, relax and enjoy them" My mother just smiled gently and said nothing.                 When I was in my forties, I spent a lifetime waiting for the phone to ring, the cars to come home, the front door to open. A friend said, " They're trying to find themselves, Don't worry, in a few years, you can stop worrying. They'll be adults. " My mother just smiled gently and said nothing.       By the time I was 50, I was sick and tired of being weak. I was still worrying over my children, but there was a new wrinkle, there was nothing I could do about it. My mother just smiled gently and said nothing.                 I continued to suffer from their failures, and be absorbed in their disappointments. My friends said that when my kids got married I could stop worrying and lead my own life. I wanted to believe that, but I was haunted by my mother's warm smile and her occasional "You look pale. Are you all right?" Call me minute you get home. Are you depressed about something ?" Can it be that parents are sentenced to a lifetime of worry?  One of my children became quite anxious about me recently, saying, "Where were you ? I've been calling for three days, and no one answered. I was worried. "  I smiled a warm smile . The torch has been passed. 
 Answer: she had been worrying about her children in her life

Answer:
The author mentioned her ages of twenties, thirties, forties and fifty in order to show  _  .


