"light travels at the rate of 300,000 kilometers per second in a vacuum." which of these statements is correct about this law?

a. it is a fact in nature which cannot be tested.

b. it is a theory which is not supported by data.

c. it is an observation which cannot be explained.

d. it is a description which does not work under similar conditions.

It is a theory that is not supported by data i think?

second mirror gathers light from a faraway object and reflects it to another mirror. - 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!