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Test for Nitrogen in Air

Nitrogen is u...

Question

Nitrogen is used in the food packaging industry because it _________

A

provides colour to the food

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B

provides oxygen to the food

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C

adds proteins and minerals to the food

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D

keeps the food fresh

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Solution

The correct option is D keeps the food fresh
Nitrogen is an inert and unreactive gas that is filled in food packets to remove oxygen and moisture from them. It keeps the food preserved and fresh by reducing the bacterial growth in the food packages.

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Test for Nitrogen in Air

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