In the First Miller-Urey Experiment, an Electrical Spark Was Passed

question 152

Multiple Choice

In the first Miller-Urey experiment, an electrical spark was passed through an experimental "atmosphere" consisting of hydrogen gas, ammonia, methane gas, and water vapor.A limitation of this experiment was that it

• A) assumed that the spark could catalyze reactions.
• B) did not include certain gasses later considered to be part of the early Earth atmosphere.
• C) did not freeze the constituents.
• D) did not contain atmospheric oxygen.
• E) did not correctly simulate the effects of hydrothermal vents.

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