finds more easily with the hydrogen ions this makes them
1:20unable to form shows let's review
1:24in a normal ocean carbonate is taken from the water
1:28and combined with calcium to from the shelves at many animals
1:31in an acidic ocean abundant hydrogen ions bind with carbonate
1:36and prevent shell formation animals
1:39like these crabs from those that depend on them for food may eventually
1:42disappear
1:43but they cannot easily form their shells