Asubstance made up of only one atom is a(n)
compound
homogeneous mixture
element
solution

Heyyyooo!

The correct answer is element

Hope this helpsss!!

Explanation:

Element is a pure substance that is made up of only one type of atom. An element cannot be broken down by any chemical means. However, nuclear reactions can lead to the generation of new elements. Examples of elements include: copper, neon and iron.

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 think the answer is a and b

i wish you luck