1
Q
Absolute Dating
A
the process of assigning an exact numerical age to an organism, an object, or event
2
Q
Relative dating
A
the process of placing object or events in their proper order in time
3
Q
uniformitarianism
A
states that the laws of nature operate today as they have in the past
4
Q
Principle of superposition
A
state that in an undisturbed sequence of sedimentary rock layers, the youngest rocks will be at the top and the oldest rock will be the bottom
5
Q
unconformily
A
gaps in the rock record during which either erosion occurred or deposition was absent
6
Q
fossil
A
the remains or traces of organisms found the geologic rock record
physical science
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