can you mention any cause behind the type of forest fire that we were talking about?
Arson, discarded cigarettes, power-lines arcs, and sparks from equipment.
Wildfire
he most common direct human causes of wildfire ignition include arson, discarded cigarettes, power-lines arcs (as detected by arc mapping), and sparks from equipment. 
which of the following is not a negative factor of nonnative species They have the potential to provide a suitable habitat or food source for other organisms. what is the other name of such species? Invasive species. can you state a reason behind a species becoming so? Scientists include ecosystem and species factors among the mechanisms that, when combined, establish invasiveness in a newly introduced species. can you name any such species? Zebra mussels. do forest fires have any effect on them? Large wildfires can sterilize soils, while adding a variety of nutrients. In the resulting free-for-all, formerly entrenched species lose their advantage, leaving more room for invasives. what are a few negative effects of such species? They cause ecological, environmental, or economic damage.
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Wildfire [SEP] Human activity
The most common direct human causes of wildfire ignition include arson, discarded cigarettes, power-lines arcs (as detected by arc mapping), and sparks from equipment. Ignition of wildland fires via contact with hot rifle-bullet fragments is also possible under the right conditions. Wildfires can also be started in communities experiencing shifting cultivation, where land is cleared quickly and farmed until the soil loses fertility, and slash and burn clearing. Forested areas cleared by logging encourage the dominance of flammable grasses, and abandoned logging roads overgrown by vegetation may act as fire corridors. Annual grassland fires in southern Vietnam stem in part from the destruction of forested areas by US military herbicides, explosives, and mechanical land-clearing and -burning operations during the Vietnam War.