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प्रश्न
Give a reason why nitrogen is filled in food packets and not oxygen.
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उत्तर
Nitrogen being inert or unreactive is filled into food packets to drive out the oxygen and reduce bacterial growth. The food package then stays well preserved.
संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
Symbiotic bacteria are present in nodules of cereal plants such as wheat.
What is the percentage of nitrogen in air?
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Whales come up to the water surface to breathe in oxygen.
The component of air used by green plants to make their food, is ______.
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
Match the following:
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| 2. | Coastal areas | b. | Humidity |
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| 4. | Windy places | d. | water vapour |
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State whether the following statement is true or false. If false, correct them.
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