A scientific investigation involves the scientific method to explain any natural phenomenon.
All the given statements the statements which can be tested that is they are the hypothesis which can be tested through the scientific experiments. When the experiments by researchers test and supports the hypothesis provides the facts then these scientific hypothesis gets transformed wither as a theory or law.
Thus, the selected options are the correct answer.
Uniformitarianism: assumption that the same natural laws and processes that operate in our present-day scientific observations have always operated in the universe in the past and apply everywhere in the universe.
