Which of the following are properties of mechanical waves? Select all that apply.
A.
Energy travels toward the source in all wave motion.

B.
Waves transport energy, but not matter.

C.
The particles of the medium always move parallel to the wave motion.

D.
The three categories of mechanical waves are transverse, longitudinal, and surface waves.

it has to be b, about 97 percent.

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.

i think its c if i'm wrong

a 2,000 calorie based diet.