Question

Answer the following in short.
1. Write down the composition of air in per cent by volume.
2. Why is nitrogen essential for plants?​

Answer 1

Answer:

2 ans:Nitrogen is so vital because it is a major component of chlorophyll,the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide(i,e photosynthesis).It is also a major component if amino acid ,the building blocks of protein.

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Answer 2

Answer:

this is the answer of your question

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