Answer:
The correct answer will be- non-living.
Explanation:
The rust is a chemical compound formed through a process called rusting by the oxidation of iron in the presence of air and water.
The formation of rust is a chemical process or a metabolic process which leads to the corrosion of iron and iron erodes away or rust eats the iron. It is not considered a living reaction as it lacks other features of living beings like not takes place in a cell as well not a heredity feature.
Thus, non-living is the correct answer
