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Earth Sciences
Wildfires

How do bushfires start?

Answer

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December 19, 2013 6:08PM

Bushfires are often started by any of the following:

  • lightning strikes
  • campfires not being put out properly
  • sparks from a car's exhaust if surrounding vegetation is extremely dry
  • arson
  • damaged power lines

Conditions that cause the bushfire to increase in intensity are excessive heat and prolonged heatwave or drought, which has caused the vegetation to become tinder-dry, as well as strong, hot winds.