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Questions and Answers
Approximately how old is the Earth?
Approximately how old is the Earth?
- 4.6 billion years (correct)
- 10 million years
- 1 million years
- 1 billion years
What term is used to describe the planet's changing geology over time?
What term is used to describe the planet's changing geology over time?
- Geologic epoch
- Geologic time (correct)
- Geologic era
- Geologic period
If the entire history of the Earth was condensed into one calendar year, when did the first primitive life appear?
If the entire history of the Earth was condensed into one calendar year, when did the first primitive life appear?
- January
- March (correct)
- November
- December
When did dinosaurs exist on Earth, according to the calendar year analogy?
When did dinosaurs exist on Earth, according to the calendar year analogy?
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When did the first modern humans (Homo sapiens) appear on Earth, according to the calendar year analogy?
When did the first modern humans (Homo sapiens) appear on Earth, according to the calendar year analogy?
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