What does iconic memory store? a. mental traces of things we hear b. mental traces of things we feel c. mental traces of things we smell d. mental traces of things we see

people have different ways of remembering things and iconic memory is one of them. iconic memory involves our visual stimuli witch is part of our visual memory system.

hope this helped (brianlist would help) 

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.