Again in a movie projector, where is the film positioned?

a. a little under one focal length behind the lens.
b. exactly one focal length behind the lens.
c. a little over one focal length behind the lens.

d

explanation:

i think the answer is d. but im not sure!

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.

this would be about 43%