6 Questions
What was the primary component of Earth's atmosphere 3.8 billion years ago?
Methane
How did the oceans 3.8 billion years ago differ from those of today?
Oceans were rich in dissolved oxygen
What is true about Earth's atmosphere 3.8 billion years ago?
It was devoid of oxygen
How do the atmosphere and oceans of 3.8 billion years ago compare to those of today?
They were similar in composition
What can be inferred about the oxygen levels in Earth's atmosphere and oceans 3.8 billion years ago?
Oceans were rich in oxygen, and the atmosphere lacked oxygen
How do stromatolites provide insights into the Earth's early environment?
Stromatolites indicate the presence of ancient microorganisms and provide clues about past environmental conditions.
Explore the conditions of Earth's atmosphere and oceans 3.8 billion years ago, including the composition of gases and oxygen levels. Learn about the differences and similarities between then and now. Discover how our planet's atmosphere and oceans have evolved over time.
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