Freezing could be a good answer
DescriptionAn exothermic reaction is a chemical reaction that releases energy through light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation: reactants → products + energy. Exothermic Reaction means "exo" meaning releases and "thermic" means heat.
The north region< we need to put the ring in Mount Doom
Explanation:
the answer and explanation is in the picture
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