Cell membranes are primarily made of a component that contains fatty acids. This component is most likely a... carbohydrate.
protein.
nucleic acid.
lipid.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.