What are the three types of wild fires, and what ignites them all?

Kainantu

There are three classifications of wildfires l. Ground fires Sometimes called 'bog fires,' these are slowly spreading, smoldering fires that burn in dried, decomposed leaves, twig, or pine needles that have fallen from the trees to the ground. 2. Brush fires. These are fast-moving fires that ignite grass, shrubs, bushes, scrub oak, chaparral, marsh grass (cattails) and grain fields. 3. Crown fires. Most crown fires are caused by the vertical spread of flames of a brush fire. http://vincentdunn.com/dunn/newsletters/june-01/FDNYHP_14.html Wildfires are caused by lightning, arson, escaping burn off, campfires, BBQ and combustion cookers, cigarettes, stationary engines and accidental lighting by adults or children. Jan 03 03, 1:50 AM