PLEASE HELP!! TIME LIMITY

Corals, the basic structures of coral reefs, are affected by the increasing acidity (decreasing pH) of the
oceans. When the ocean absorbs carbon dioxide, the carbon dioxide reacts with water and other
substances to form carbonic acid. This process uses substances in the ocean that corals use to build
their skeletons. So, the more carbon dioxide there is in the ocean, the harder it is for corals to build their
skeletons. Ocean acidification can also destroy existing coral reefs.
1. Give two possible ways that negative human impact on the pH of Earth’s oceans can be reduced.