Q: Answer the following question given this paragraph: The three theories below are essential in Earth science. Each accounts for an enormous amount of data. Each is supported by many lines of evidence. All can be used to make predications. As new evidence arises, any of these theories may need to be altered. But none of these three are likely ever to be disproved. They are accepted by nearly all of the credible scientists in their fields. Q: In science, what is supported by much evidence, widely accepted by credible scientists, and unlikely to be disproved? A:

Possible answers: I. law; II. concept; III. hypothesis; IV. theory;
A:
IV.