Multiple Choice
In modern Miller-Urey experiments it is assumed that carbon and nitrogen in the early atmosphere were present as
A) methane (CH₄) and ammonia (NH₃)
B) carbon dioxide (CO₂) and nitrogen (N₂)
C) carbonates (CO₃⁻) and nitrates (NO₃⁻)
D) carbon and nitrogen atoms
Correct Answer:

Verified
Correct Answer:
Verified
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