11. In an experiment to determine the size of an oil molecule, clean water was placed in a large basin and then left over several minutes without any disturbance. Lycopodium powder was carefully
spread on the water surface. A drop of oil was then taken from a container using a fine wire. its
diameter was measured using a millimeter scale with the aid of a hand lens and was found to be
0.35mm. The oil drop was carefully transferred onto the water surface where it spread to form a
circular patch of diameter 14cm.
(a)Use the measurements obtained to determine:
(1)The approximate volume of an oil molecule in mm³​

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.