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fossils
| Question | Answer |
|---|---|
| Uniformitarianism | A principle that geologic processes that occurred in the past can be explained by current geologic processes. |
| Trace fossil | A fossilized structure, such as a footprint or a coprolite, that formed in sedimentary rock by animal activity on or within soft sediment. |
| Fossil | The trace or remains of an organism that live long age. Most commonly preserved in sedimentary rock |
| Climate | the weather conditions in an area over a long period of time |
| Ice core | A long cylinder of ice obtained from drilling through ice caps or ice sheets used to study past climates |
| Relative dating | Determining whether an object is the same age as older than, or younger than another object is called relative dating |
| Superposition | sediment is deposited in horizontal layers on top of older rock or sediment |
| Cross cutting | the darker rock crosscuts the lighter rock |