One veteran conservative education reformer describes himself as âfurious and frustratedâ by the increasing dominance of social justice warriors in education reform and the marginalization of dissenting views. âIt's an existential threat,â he notes.
Class A or Ordinary Combustibles ... Class B or Flammable and Combustible Liquids ... Class K for fires that involves combustible or fats cooking oils in well ... â PowerPoint PPT presentation.
What are the fire and explosion hazards of oxidizing liquids and solids? Burning involves the oxidation of a combustible (burnable) substance. When a combustible substance burns, a chemical reaction occurs in which the substance (fuel) combines with oxygen, and gives off heat, gases, and often light (flames). The usual source of oxygen for burning is air.