All those reactions which take place in heat energy are known as:

A: Exothermic reactions
B: Combustion reactions
C: Endothermic reactions
D: Incineration reaction
Correct Answer: A
Short Details:
Exothermic is a chemical reaction that release energy in form of light and heat.
Burning or Candles, Rusting of Iron, Reaction of Water and Acid, Making of Ice cube, Burning of Sugar are examples of Exothermic Reaction.