Cold?
There are many different ways to a fire. You can use a flint and steal or a mach and lighter. The facts for the mach and lighter are they are man made it cost money you don't find it in nature but you do find it at the store and it sometimes breaks. The facts for the flint and steal are they are non man made you find it in nature you find it in or on ground it sometimes breaks and you use flint and steal to make a flint and steal.