Question

fill in the blank question
the miller - urey experiment assembled a reducing atmosphere rich in
with no oxygen over liquid water at a temperature just below
°c
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Explanation:

The Miller-Urey experiment simulated early Earth's reducing atmosphere, which was composed of methane ($CH_4$), ammonia ($NH_3$), hydrogen ($H_2$), and water vapor, with no free oxygen. The experiment maintained liquid water at a temperature just below 100°C, the boiling point of water, to keep it in liquid form while driving evaporation and condensation cycles.

Answer:

1. methane, ammonia, hydrogen (and water vapor)
2. 100