Ask AI: discuss how the concept of uniformitarianism helps explain why earth formed different density zones

Uniformitarianism is the principle that states that the same geologic processes operative in the past can explain the present-day geological features of Earth. This concept helps explain why Earth formed different density zones because the same geological processes that shaped Earth in the past are still happening today, allowing for the formation of different density zones over time. By studying the geological history of Earth, scientists have been able to construct models that predict the formation of different density zones based on the principle of uniformitarianism. This means that the forces and processes that have shaped Earth in the past are still active today and can therefore explain why Earth formed different density zones.