A breadbox is made to move along an x axis from x = 0.15 m to x = 1.20 m by a force with a magnitude given by F = exp(–2x2), with x in meters and F in newtons. (Here exp is the exponential function.) How much work is done on the breadbox by the force?

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.