Problem: Alpine glaciers can be straight rivers of ice, long sweeping rivers, spread in a fan-like shape (Piedmont glaciers), and curtains of ice that hang from vertical slopes of the mountain peaks. The stress of the movement causes the ice to break and crack loudly, perhaps explaining why the mountains were believed to be home to dragons in the medieval period. The cracking creates unpredictable and dangerous crevasses, often invisible under new snowfall, which cause the greatest danger to mountaineers.
What causes the ice to break and crack loudly?
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Answer: The stress of the movement


Problem: In a 2009 national readership survey The Times was found to have the highest number of ABC1 25–44 readers and the largest numbers of readers in London of any of the "quality" papers.
In a 2009 national readership survey, what newspaper has the highest number of ABC1 25-44 readers?
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Answer: The Times


Problem: Gun usage in hunting is typically regulated by game category, area within the state, and time period. Regulations for big-game hunting often specify a minimum caliber or muzzle energy for firearms. The use of rifles is often banned for safety reasons in areas with high population densities or limited topographic relief. Regulations may also limit or ban the use of lead in ammunition because of environmental concerns. Specific seasons for bow hunting or muzzle-loading black-powder guns are often established to limit competition with hunters using more effective weapons.
Why would the use of a bow for hunting be banned?
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Answer:
unanswerable