What best describes the energy in a closed system at the beginning of a day and the energy at the end of the same day? check all that apply. some energy can disappear after it has caused motion. some energy can be changed from one form to another. some energy can be lost to the environment around the system. the total initial energy will be equal to the total final energy. the total initial energy will be greater than the total final energy. friction can cause energy to be destroyed during the day. friction can cause the amount of thermal energy to increase.

The options which are apply on it;

2. Some energy can be changed from one form to another.

4. The total initial energy will be equal to the total final energy.

7.Friction can cause the amount of thermal energy to increase.

Energy can not be created or destroyed it can only be converted from one form to another.

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.