Consider the Experiment That Stanley Miller Did to Simulate Chemical

question 49

Multiple Choice

Consider the experiment that Stanley Miller did to simulate chemical evolution. Recall that a glass flask held the reduced gases NH₃, CH₄, and H₂ and that the gases were exposed to electrical sparks. What is the null hypothesis in the experiment?

• A) Chemical evolution does not occur.
• B) Chemical evolution requires the presence of reduced molecules.
• C) Chemical evolution occurs only on Earth.
• D) Chemical evolution requires a source of kinetic energy.
• E) Chemical evolution requires continuous heating.

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