Question

Which of these statements is most likely correct about the Nebular theory of formation of solar system? . . A. It is based on facts which are non-testable. . . B. It is invalid because it is based on non-observable facts. . . C. It cannot be replaced by modern theories in the future. . . D. It was proposed after several scientific investigations proved it valid.

Answer 1

A, we can't go back and test a lot of the facts, but it is a valid theory because we have non observable evdience of it