Which one of the following is the missing third element in the fire triangle if the other two are oxygen and fuel?

Question

Quizplus · Accepted Answer

The missing element in the fire triangle is heat. In order for a fire to occur, there needs to be fuel, oxygen, and heat to start and sustain the reaction. Neither hydrogen nor paper are elements of the fire triangle, and while electricity can be a factor in starting a fire, it is not one of the three necessary elements.

Which One of the Following Is the Missing Third Element