Intensity of a sound wave. Assume that the source is located in the exact center of a large sphere, then the power of the sound wave is distributed evenly over the surface area of the sphere. Consider five scenarios where the power of the source depends on some constant and the radius of the sphere depends on some constant. Arrange the intensities of the sound waves from lowest to highest.

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.

there are no atoms

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.