Fire

Fire is a rapid chemical reaction called combustion, where fuel (such as wood, paper, or gas) reacts with oxygen in the air, producing heat, light, and often smoke. It requires three elements: heat, fuel, and oxygen—known as the fire triangle. When these elements are present and conditions are right, the reaction begins, releasing energy and sustaining itself as long as fuel and oxygen are available. Fire serves essential roles in nature and human activity but can be destructive if uncontrolled. Proper understanding and management are vital for safety, firefighting, and harnessing its energy for various uses.