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Questions and Answers
What does stratigraphy focus on?
What does stratigraphy focus on?
- The composition of rocks
- The types of coal deposits
- The formation of minerals
- The history of Earth's rocks (correct)
How is an era measured?
How is an era measured?
- In hundreds of years
- In billions of years
- In millions of years (correct)
- In thousands of years
What is a period in geological time scale?
What is a period in geological time scale?
- A unit of time less understood than era
- A unit clearly understood and fundamental (correct)
- A time-frame indicated by local variations
- A division of an epoch
What do epochs signify in geological time?
What do epochs signify in geological time?
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What does lithology signify?
What does lithology signify?
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What is the smallest unit on the geological time-frame?
What is the smallest unit on the geological time-frame?
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What does correlation achieve in geology?
What does correlation achieve in geology?
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