Answer:
1 C
2 E
3 A
4 B
5 D
Explanation
1 combustion- is a process of burning a material with the aid of oxygen(C)
2 oxidation- combination of a substance with oxygen(E)
3 rusting- reaction of iron with oxygen present in air(A)
4 Food spoilage- result of oxygen reacting with the enzymes found in the food(B)
5 oxygen- part of the air that surrounds us(D)
