Read the following statements. 1. I am present in air. 2. Plants need – McqOptions

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1.	Read the following statements. 1. I am present in air. 2. Plants need me from the air for making food. 3. I am released in the air when you breathe out. These statements are regarding ___.
A.	Carbon dioxide
B.	Nitrogen
C.	Hydrogen
D.	Oxygen
Answer» B. Nitrogen

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