Which of the following is not an important ingredient to sustain fire?

It involves direct contact of substances typically solid for heat to be transferred. 

It is the longest stage of fire where oxygen and fuel begins to diminish. 

It is the unlawfully act of intentionally burning buildings, vehicles, farmland, and other property using chemicals, bombs, etc. to inflict damage for whatever reason. 

Which of the following classes of fires involves fuel such as wood, paper, cloth and other ordinary materials?

What is the meaning of P in PASS in using the fire extinguisher during an emergency?

It is any natural or anthropogenic caused uncontrolled fire in remote areas where there is extensive combustible vegetation and/or organic materials like forests.

It involve burning of buried decomposed organic matter and extensive tree root systems. 

It is an explosive fire that happens due the sudden introduction of oxygen into an enclosed structure, like house, which have been deprived of air for quite some time. 

It is the energy that flows from an object of higher temperature to an object of lower temperature. 

The three main ways of heat transfer are convection, conduction, and insulation. 

Wildfires can be natural or man-made  uncontrolled fire in remote areas. 

Grazing can be done to reduce fuel-like brushers and to prevent fires from starting and spreading. 

Fire extinguishers that contain water and foam can be used to put out class A fires and not on class B or C. 

Class D fires includes cooking oils and greases.