<span>Movement of any particle or molecule from higher concentration to lower concentration is called diffusion. I hope I helped :)</span>
Answer: 4%
If it was another then it would not make any sense.
Explanation:
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Bicarbonate buffer system. Human blood contains large amounts of carbonic acid, which is a weak acid, and bicarbonates, a strong base. If blood pH falls below 6.8 or rises above 7.8, one can become sick or die. This bicarbonate buffer system help maintain blood pH at 7.4. The bicarbonate neutralizes excess acids in the blood while the carbonic acid neutralizes excess bases.
Mass and distance
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