Which of the following conditions are necessary to make a fire? 

1. Availability of air/oxygen only 
2. Availability of air/oxygen and fuel
3. Temperature of the fuel below the ignition temperature
4. Temperature of fuel above the ignition temperature

There are three essential requirements for producing fire. These are fuel, air (to supply oxygen), and heat (to raise the temperature of the fuel above the ignition temperature). Ignition temperature is the lowest temperature at which a fuel catches fire. So, the conditions given as statements 2 and 4  are necessary for a fire to occur.