In Canada,the total area burned by wild fires in the first half of the 20th century was less than the total area burned in the second half of the 20th century.
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Q50: Pre-ignition processes release heat.
Q51: In Canada,there typically is no winter wildfire
Q52: Hydrophobic soil layers formed by fire disintegrate
Q53: Only people can prevent forest fires.
Q54: Aboriginal peoples used fire as a hunting
Q56: Many areas in California are at risk
Q57: Given the same wind velocity,wildfires move faster
Q58: The purpose of a fire break is
Q59: When plant material burns,carbon dioxide,water vapour,and heat
Q60: Fire can trigger the release of seeds.
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