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Questions and Answers
What is the main basis for formulating the geologic time scale?
What is the main basis for formulating the geologic time scale?
- Correlating with evolutionary events
- Assessing the age of rocks and rock sediments (correct)
- Analyzing the influence of geological and climatic changes on living organisms
- Recording incidents pertaining to Earth's surface, plant, and animal life
What is the age of the Earth according to the text?
What is the age of the Earth according to the text?
- 4.7 billion years (correct)
- 5.2 billion years
- 3.5 billion years
- 6.0 billion years
What is the purpose of dividing the geologic time scale into eons, eras, and periods?
What is the purpose of dividing the geologic time scale into eons, eras, and periods?
- To categorize the ancient period
- To create a four-level hierarchy of time intervals (correct)
- To neatly record incidents pertaining to Earth's surface, plant, and animal life
- To correlate with evolutionary events
What is the source of the dates used in creating the geologic time scale?
What is the source of the dates used in creating the geologic time scale?
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What is the influence that has been well analyzed in relation to the geologic time scale?
What is the influence that has been well analyzed in relation to the geologic time scale?
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