Explain the difference between oxidation and digestion

No, nothing of the sort. Digestion entails NO oxidation. Chemically speaking, digestion is mostly hydrolysis: proteins to amino acids, carbohydrates to monosaccharides, etc. Oxidation has nothing to do with oxygen.

meaning: oxidisation occurs when an element is oxidised or losses electrons. major example: rusting of iron.

meaning: digestion is the break down of food molecules into nutrients which the body later uses for energy, development, cell repair, etc. major part of digestion occurs in small intestine and begins from mouth.

let that person have a turn to speak : )

the answer is minerals.