What is the main contribution of James Hutton to the field of geology? Introduction of the principle of uniformitarianism Study of ancient life and the concept of extinction Discovery of the theory of plate tectonics Examination of natural hazards and their effects

The main contribution of James Hutton to the field of geology is the introduction of the principle of uniformitarianism. This principle states that the Earth's features were shaped by the same natural processes that we observe today, operating at similar rates. This idea laid the foundation for the understanding of the Earth's history and the development of the theory of plate tectonics.