Why are oils and fat containing food items are flushed with nitrogen?​

Nitrogen is an inert gas, hence it acts as antioxidant and prevents the oils and fats from oxidation. Thus, oils and fats are flushed with nitrogen to prevent their oxidation and stop odor.

Explanation:

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acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

the dissolution of polymer can be thermodynamically described in 2 steps.