Ais marked by two sets of double yellow lines, with each set having a broken line on the inside, and a solid line on the outside.
a. merge lane
b. high-occupancy vehicle (hov) lane
c. center left turn lane
d. center right turn lane

increase masses, decrease separation

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.

b

explanation: