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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Definitions:

Vertical Line

A straight line that runs up and down, perpendicular to a horizontal line, often used in geometry and graphing.

Horizontal Line

A horizontal line is a straight line that runs left-to-right across a page or other surface, perpendicular to a vertical line.

Perceptual Organization

The process by which the brain structures sensory stimuli into meaningful patterns and shapes, enabling us to interpret and navigate our environment.

Melodic Refrain

The part of a song or composition that is repeated, often containing the main theme or most memorable melody.