How do rocks provide a history of the earth?

1 Answer
Nov 29, 2016

Rocks provide evidence for changes in the Earth.
The ideas about rocks really started with the :
Wegener’s theory ( theory of continental drift )
* If you want me to explain the theory just ask!


Geologists can use other evidence from rocks such as:

  1. Looking at cross-cutting features (rock that cuts across another is younger)
  2. Using fossils (species existed/ became extinct during certain time periods)
  3. Deepness of the rock (younger rocks are usually on top of older ones).