Chemistry
State how nitrogen is utilized by plants for their growth. Give a reason why nitrogen is used in flushing food packages.
Air
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Answer
Growth and development of plants — Free nitrogen of air is converted to soluble nitrogenous compounds in the soil. These are absorbed by plants and converted to plant proteins which play a vital role in their growth and development.
Flushing food packages — Nitrogen being inert or unreactive is filled into food packets to drive out the oxygen. Hence, bacterial growth inside the food packages is reduced and thereby the food is well preserved and fresh.
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