Question

How much minimum temperature a substance can be heated befor catching fire?

Answer 1

$\huge\underline\orange{\sf Answer}$

Minimum temperature to which a combustible substance must be heated, before it catches fire. Therefore, we see that a combustible substance cannot catch fire as long as its temperature

Answer 2

HERE IS YOUR ANSWER

The minimum temperature at wich a substance can be heated before catching fire. Hence, we see that the combustible substance can't catch fire as long as it's temperature.