Answer: Above 7
Explanation: The pH of the ocean is above 7. It has been basic foe over the past 300 million years. There has been a significant increase in the acidity of the ocean water.
The pH of the ocean water is around 8.2. The acidity in the ocean water near the surface does not allows the shell growth in the marine animals. It is suspected to cause some sought of reproductive disorder in some fishes.
