EVERYDAY SCIENCE

Detailed explanation-1: -wildfire, also called wildland fire, uncontrolled fire in a forest, grassland, brushland, or land sown to crops.

Detailed explanation-2: -Forest fires are wildfires that spread uncontrollably, burning plants, animals, grasslands and brushlands that fall in their path. The wind spreads the fire rapidly, causing significant air pollution. Generally, fires that continue for longer or are highly inflammable are caused by climatic changes.

Detailed explanation-3: -When necessary, large machines (bulldozers or plows) are used to clear openings, or firebreaks, which stop the spread of the fire. This requires clearing surface and sometimes aerial fuels from a strip of land and then digging down to mineral soil to stop a creeping or surface fire.

Detailed explanation-4: -Crown fires burn trees up their entire length to the top. Surface fires burn only surface litter and duff. Ground fires (sometimes called underground or subsurface fires) occur in deep accumulations of humus, peat and similar dead vegetation that become dry enough to burn.