If a source radiates sound uniformly in all directions and you triple your distance from the sound source, what happens to the sound intensity at your new position?
a. the sound intensity drops to 1 / 27 of its original value. b. the sound intensity increases to three times its original value. c. the sound intensity drops to 1 / 3 of its original value. d. the sound intensity drops to 1 / 9 of its original value. e. the sound intensity does not change.

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.

answer: 31, 5556. 952 seconds

answer///scientific method;

answerdmitry mendeleyev made a workable classification of the elements