Where do seawater and freshwater meet?

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right