Match the characteristics of the roller coaster to the correct locations on the graph. (Assume there’s no friction and the two hills are the same height)

i believe it is b. what was the cause of the big bang

hope this !

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

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.