Read the paragraph. The lighting of a match is an appropriate illustration of the principles of combustion. In striking the match, friction raises the temperature of
the phosphorus compound in the tip to its kindling temperature. The heat from the burning phosphorus raises the sulfur in the bulb of the match
to its kindling temperature, and it in turn ignites the paraffin and then the wood. Three conditions for burning are illustrated the phosphorus
sulfur, and wood furnish something to burn; the oxidizing agents support combustion and the wood's kindling temperature is reached in degrees
by combustion of the phosphorus and the sullur.
As described in this paragraph, what is the meaning of kindling temperature?
1. three conditions for burning
2. the degree of heat necessary for a material to start burning
O 3. the oxidizing of another material
4. the condition a material reaches after it has started burning