Relative dating involves placing events in their proper chronological sequence, that is, in the order of their occurrence Dutch 1998. This type of dating tells us which geologic event happened first, but does not give an exact date to which something happened. There are several different methods that are used in relative dating. These are the fundamental methods that are used in the field by geologists" and earth scientists to gather information about the relative age of rock bodies and other cool geologic stuff. These principles are the principle of superposition, the principle of original horizontality, the principle of cross-cutting...
knowledge a how to date events in chronological order. Most people probably already knew most of these principles, but didn"t know how to relate them to the earth.

Relative dating doesn"t directly affect the biosphere, but the processes that it reveals to us, does. For example, using the principle of original horizontality we know that rocks are layered in horizontal planes. So when we see rocks that are tilted we know that a large-scale geological event took place to change the orientation of those rocks. By using this method we can predict how biological organisms were affected by it.