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Questions and Answers
What type of atmosphere surrounded the early Earth?
What type of atmosphere surrounded the early Earth?
- Nitrogen and ammonia
- Methane and CO2 (correct)
- Methane and oxygen
- Oxygen and nitrogen
When did the Earth cool and condense water into oceans?
When did the Earth cool and condense water into oceans?
- Around 3.5 billion years ago
- Around 4.2 billion years ago (correct)
- Around 4.6 billion years ago
- Around 4 billion years ago
What type of isotopes are mostly found in natural stable carbon isotopes?
What type of isotopes are mostly found in natural stable carbon isotopes?
- $^{13}C$ (13C)
- $^{14}C$ (14C)
- $^{15}C$ (15C)
- $^{12}C$ (12C) (correct)
What does an enrichment of $^{12}C$ in rock suggest?
What does an enrichment of $^{12}C$ in rock suggest?
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What are Stromatolites produced by according to the given text?
What are Stromatolites produced by according to the given text?
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What is the main belief of the Panspermia theory?
What is the main belief of the Panspermia theory?
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What did the prebiotic soup hypothesis propose?
What did the prebiotic soup hypothesis propose?
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What was Montmorillonite clay's role in the formation of polymers?
What was Montmorillonite clay's role in the formation of polymers?
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According to Miller-Urey experiments, what organic molecules were formed?
According to Miller-Urey experiments, what organic molecules were formed?
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