Correct option is C
When fuels are burned, they undergo a chemical reaction called combustion, which releases energy primarily in the form of heat and light. This is evident in activities such as lighting a candle, running an engine, or using a gas stove. Heat energy is used for cooking, heating, or powering machines, while light energy is visible as flames or glow.
Information Booster:
- Combustion: The process of burning a substance in the presence of oxygen, releasing heat and light.
- Examples: Burning wood, coal, or gasoline produces both heat and light.
- Applications: Heat energy from fuels is used in cooking, heating, and industrial processes, while light energy can illuminate.