__is the gradual destruction of materials by chemical reaction with their environment.
Corrosion is the gradual destruction of materials by chemical reaction with their environment.
Example: Copper gets green coloured coating due to formation of copper carbonate when exposed to oxygen and carbon dioxide.
1. Which group of elements is stored in oil due to their reactive nature with water and air?
2. Waht is deterioration of a metal by chemical or electrochemical reaction with its environment called?