What is the lunar regolith? Group of answer choices a.) The lunar crust and mantle together b.) The deeper part of the lunar crust that has not been extensively cracked by impacts c.) The part of the lunar surface that is not covered with lava flows d.) The layer of fine powder covering the lunar surface

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.