Which type of scientific statement is defined as a statement of fact that is generally accepted to be true and universal because it has always been observed to be true?
theory
probability
law
hypothesis

Law, if you notice when reading about the laws of physics it is stated as a fact and has been accepted as the truth.

For example : Newton's first law of physics

"An object in motion tends to stay in motion until an object of an opposite force and direction acts upon it."

A scientific law is kind of a universal truth that has just always been observed to be true and undisputable. Example of such a law is Newton's law of gravity.

Iwould say silver and gold