What parts of the ocean are influenced by tide-generating forces? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Only the shallow coastal areas b Only the surface of the ocean ? Only the upper 1000m of the ocean d All depths and parts of the occean Na+ and Cl-ions in the ocean are mainly sourced from: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. River discharge b Volcanoes Mid-ocean ridge circulation d All of the above e None of the above