Match each geological concept related to Earth's history with its correct definition.
- Law of SuperpositionStates that in undisturbed sedimentary rock layers, older layers lie beneath younger layers
- Index FossilThe remains of a widespread organism that existed for a short, specific geologic time span
- Radiometric DatingDetermines the absolute numerical age of rocks by measuring radioactive isotope decay
Answer
Law of Superposition matches the principle that undisturbed lower sedimentary layers are older than upper layers; Index Fossil matches the remains of a widespread organism that lived during a short geologic span; Radiometric Dating matches the method of finding absolute age through radioactive isotope decay.
Each geological term is paired with its core scientific principle: the Law of Superposition establishes relative layer sequence, index fossils establish biostratigraphic correlation across a specific era, and radiometric decay calculations yield numerical ages.
Step-by-Step Solution
Key Concept
Geological dating methods and principles of relative and absolute time
Estimated Time:45s