Answer: c deltas
Explanation: hope this helps
Answer:
most enzymes' optimum pH is neutral or close to neutral, like amylase found in saliva, which has an optimal pH = 6.8. Some enzymes prefer a more drastic pH, like pepsin, which can have an optimum pH of 1.7 to 2. Sometimes enzyme pH optima depends on where the enzyme is found.
Answer: temperature differences in the mantle
Explanation: I took a quiz and got it right