Which of the Following Kinds of Molecules Is Thought to Have

question 21

Multiple Choice

Which of the following kinds of molecules is thought to have been absent from the primitive reducing atmosphere?

• A)Water vapor (H₂O)
• B)Carbon dioxide (CO₂)
• C)Oxygen (O₂)
• D)Nitrogen (N₂)

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Definitions:

Working Memory

A cognitive system that holds and manipulates information in short-term memory for tasks such as reasoning and comprehension.

Long-term Memory

The aspect of memory responsible for storing information over extended periods, potentially throughout a person’s life.

Retrograde Amnesia

A loss of memory-access to events that occurred, or information that was learned, before an injury or the onset of a disease.

Explicit Memory

Memory in which there is conscious recall of facts and events.