First question: “Every system in the body relies on oxygen. From cognition to digestion, effective breathing can not only provide you with a greater sense of mental clarity, it can also help you sleep better, digest food more efficiently, improve your body's immune response, and reduce stress levels.” -google
The answer is a) genotype
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All of the above is the answer.
Answer: coal
Explanation: coal is formed when layers of peat are compressed by the layers of rocks above.
