Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. ![]() ![]() ![]() Kinney Lake and Mount Whitehorn near Mount Robson, Canada
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