Ok, well then let's get started.
Can you tell me:
What is Fire?
What is Katon?
How is Katon usefull for us Shinobis?
Fire:
It is one of the five main elements of the nature.......
it is simply the oxidation process of a certain substance that is known as the Fuel.......
this oxidation process releases byproducts in the form of gases, heat and light.......
Oxidation process requires sumthng other than just fuel and that is air (Particularly oxygen)
Katon:
Katon means Fire style
Uses of Katon:
The manipulation of chakra by a shinobi gives him the power to literally create the fuel required for the continous Flaming.
Mostly katon (Fire style jutsu) is used by a shinobi in his battles against wind style users
Since air is everywhere to be found the power of the fire style jutsu increases along with the shinobi's chakra level
Fire style jutsu also helps ninja cooks on their missions to cook food and also reduce weight of carrying the fuel load
Fire style jutsu was known as the Clan jutsu of the uchiha clan.
Correct me if i am wrong sempai