What methods do geologists use to determine the age of rocks? Describe them briefly.

Geologists employ various methods to determine the age of rocks, aiming to unravel the Earth's geological history and understand the processes that shaped its surface over millions to billions of years. These methods fall into two broad categories: relative dating and absolute dating. Each approach provides unique insights into the timing of geological events and the sequence of rock formation.

1. Relative Dating:
   - Law of Superposition: This principle states that in a sequence of undisturbed sedimentary rocks, the youngest rocks are at the top, and the oldest are at the bottom. By examining the vertical order of rock layers, geologists can infer the relative ages of different strata.
   - Stratigraphy: This method involves studying the layering, or stratification, of rocks. Changes _________ ____ _________ ___ ____ __________.
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