What are you trying to find? That is a pedigree
Answer:
Lactic acid fermentation.
Explanation:
Lactic acid fermentation is responsible for the production of lactic acid. During intense activity, there is an excess of lactic acid fermentation that leads to high lactic acid concentrations, which in high quantities is toxic and causes soreness in the muscles after intense exercise.
Well, nitrogen is the gas that makes up 78% of the earth's atmosphere.
I would guess its in the air that we breathe. I am not really sure. Just basing this answer off of research.