how can fires be controlled?
Through the use of fire retardants.
Wildfire
Fire retardants are used to slow wildfires by inhibiting combustion. 
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. 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. how do they affect the climate? Earlier snowmelt and associated warming has also been associated with an increase in length and severity of the wildfire season, or the most fire-prone time of the year. does it lead to any respiratory disease? Yes.
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Wildfire [SEP] Fire retardants
Fire retardants are used to slow wildfires by inhibiting combustion. They are aqueous solutions of ammonium phosphates and ammonium sulfates, as well as thickening agents. The decision to apply retardant depends on the magnitude, location and intensity of the wildfire. In certain instances, fire retardant may also be applied as a precautionary fire defense measure. Typical fire retardants contain the same agents as fertilizers. Fire retardants may also affect water quality through leaching, eutrophication, or misapplication. Fire retardant's effects on drinking water remain inconclusive. Dilution factors, including water body size, rainfall, and water flow rates lessen the concentration and potency of fire retardant.