How the fire heat and how it is called fire? ​

The heat of the flame itself keeps the fuel at the ignition temperature, so it continues to burn as long as there is fuel and oxygen around it. The flame heats any surrounding fuel so it releases gases as well. When the flame ignites the gases, the fire spreads. On Earth, gravity determines how the flame burns

answer:

1.b 2.b 3.a 4.a 5.d

Explanation:

sana makatulong

answer:

21.fire

22.oxygen

23.heat

24.change in material

where is it? This is incomplete