This is the answer , and I am so sure.
Hey there
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The correct answer is:
Nitrogen is a key element in the formation of B. amino acids ,which are substances necessary to living organisms.
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B.) All americans must be prepared to fight for the safety and freedom of the united states.
I'd make up a lie on how I have a school work project that I'm doing to help someone.
It tells you how to pronounce the word