Seismic Wave Velocity (km/sec)
2 4 6 8 10 12
S-Waves
P-Waves
Layer 1
P-Waves
Layer 2
The students create a table to identify which layers are shown in the
graph. Which table best represents the data in the graph?

what was the answer?

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.

this would be about 43%