It is only active at a pH of around 2 because that is around the same pH as the gastric juices in the stomach which is where pepsin is used to break down proteins.
Answer:
my take on this is B, i would wait for others tho
Explanation:
Answer:
Use hcfc and no using (cfc).
One also can refuse using air corn and also car pole
Safe the electric or just us the solar energy.
Plant more tree and do 3 r