Respuesta :

 It is something that has been proven and has had the same result for multiple years
 

Answer;

It is because it has been observed repeatedly and does not attempt to explain why the sun sets in the west.

Explanation;

-A scientific law is a statement of a relation that expresses a fundamental principle of science. A scientific law is a description of a natural event.

-The sun sets in the west on Earth and most of the planets in our solar system. This is a description of a natural event and thus it could be considered a law on Earth.