Answer:
i) Corrosion: This is the deterioration of a material, usually a metal, due to its reaction with its environment.
Example: Iron exposed to oxygen and moisture in the air will rust, which is a form of corrosion. The iron combines with oxygen to form iron oxide, the reddish-brown flaky material we see on rusted objects.
ii) Rancidity: This is the process by which fats and oils in food deteriorate, leading to an unpleasant odor and taste.
Example: Nuts left unsealed for a long time can become rancid. The fats in the nuts react with oxygen in the air, causing them to break down and develop a stale or off flavor.
Explanation:
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