Do the results of this experiment support the hypothesis that increased atmospheric (co₂), will slow the growth of coral reefs? why or why not?

Yes climate change will slow and destroy the coral reefs beyond repair

Explanation:

As the rise of carbon dioxide will impact the earth's atmosphere are it's the ocean's as this will cause massive coral bleaching as it has been happening from long back.  An increase in GHG and other harmful pollutants in the atmosphere will cause the atmosphere to loses its charm. The rise in sea level will impact the intensity of the storm and destroy the habitats for corals to develop.