The energy needed to change a substance from one state to another is called of fusion/vaporization. a. heat b. work c. entropy d. energy

The question is very poorly constructed.

The energy needed to change a substance from the solid to the liquid state is called the "latent heat of fusion".

The energy needed to change a substance from the liquid to the gaseous state is called the "latent heat of vaporization".

The question is simply fishing for the word that's used in both of these labels, so the word is heat. (a)

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!

i already answered it by 34/s