What notable theory did Urey have about Earth’s early atmosphere?
It was oxygen-rich
It had no atmosphere
It was similar to today's
It contained ammonia, methane, hydrogen
Answer
The early atmosphere of Earth, according to Urey's notable theory, was composed primarily of ammonia, methane, and hydrogen. This hypothesis challenged the prevailing notion of an oxygen-rich atmosphere and laid the foundation for understanding the planet's early evolution and the origin of life.
Mastering the Elements: The Life and Work of Harold Urey
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