An experiment measures the breaking point of identical strips of wood made from different trees. the procedure must contain which of the following instructions? a. performing the experiment outside b. disposing of the broken wood strips c. cleaning up the scattered pieces of wood d. performing the experiment in a safe manner

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.